WO2004099340A1 - 高分子発光体組成物 - Google Patents
高分子発光体組成物 Download PDFInfo
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- WO2004099340A1 WO2004099340A1 PCT/JP2004/006598 JP2004006598W WO2004099340A1 WO 2004099340 A1 WO2004099340 A1 WO 2004099340A1 JP 2004006598 W JP2004006598 W JP 2004006598W WO 2004099340 A1 WO2004099340 A1 WO 2004099340A1
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- WIPO (PCT)
- Prior art keywords
- group
- light emitting
- atom
- substituted
- polymer light
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- 229920000642 polymer Polymers 0.000 title claims abstract description 155
- 239000000203 mixture Substances 0.000 title claims abstract description 89
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 96
- 125000003118 aryl group Chemical group 0.000 claims abstract description 79
- 150000002500 ions Chemical class 0.000 claims abstract description 70
- 150000001450 anions Chemical class 0.000 claims abstract description 33
- -1 Oxyl group Chemical group 0.000 claims description 258
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 80
- 239000000463 material Substances 0.000 claims description 80
- 229910052757 nitrogen Inorganic materials 0.000 claims description 71
- 125000004432 carbon atom Chemical group C* 0.000 claims description 51
- 125000000217 alkyl group Chemical group 0.000 claims description 50
- 150000001768 cations Chemical class 0.000 claims description 47
- 125000004429 atom Chemical group 0.000 claims description 43
- 125000003545 alkoxy group Chemical group 0.000 claims description 39
- 239000002904 solvent Substances 0.000 claims description 38
- 125000006575 electron-withdrawing group Chemical group 0.000 claims description 37
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 36
- 125000004414 alkyl thio group Chemical group 0.000 claims description 29
- 125000003342 alkenyl group Chemical group 0.000 claims description 28
- 125000003277 amino group Chemical group 0.000 claims description 28
- 125000004104 aryloxy group Chemical group 0.000 claims description 26
- 125000000304 alkynyl group Chemical group 0.000 claims description 24
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 23
- 125000002102 aryl alkyloxo group Chemical group 0.000 claims description 22
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 22
- 125000004423 acyloxy group Chemical group 0.000 claims description 21
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- 125000004659 aryl alkyl thio group Chemical group 0.000 claims description 20
- 125000005018 aryl alkenyl group Chemical group 0.000 claims description 19
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 19
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- 125000004093 cyano group Chemical group *C#N 0.000 claims description 16
- 125000005368 heteroarylthio group Chemical group 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
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- 125000005842 heteroatom Chemical group 0.000 claims description 12
- 229910052711 selenium Inorganic materials 0.000 claims description 12
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
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- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 6
- 229910052714 tellurium Inorganic materials 0.000 claims description 6
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims description 6
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052794 bromium Inorganic materials 0.000 claims description 5
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- 150000003949 imides Chemical class 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 5
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 4
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- 125000004450 alkenylene group Chemical group 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
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- 150000002815 nickel Chemical group 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 3
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- 239000011574 phosphorus Substances 0.000 claims description 3
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical group [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- 125000004742 propyloxycarbonyl group Chemical group 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims 4
- 125000001183 hydrocarbyl group Chemical class 0.000 claims 3
- 125000002877 alkyl aryl group Chemical group 0.000 claims 2
- 125000000879 imine group Chemical group 0.000 claims 2
- 125000003410 quininyl group Chemical group 0.000 claims 2
- QRSFFHRCBYCWBS-UHFFFAOYSA-N [O].[O] Chemical group [O].[O] QRSFFHRCBYCWBS-UHFFFAOYSA-N 0.000 claims 1
- 229910052795 boron group element Inorganic materials 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 224
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 99
- 230000015572 biosynthetic process Effects 0.000 description 79
- 238000003786 synthesis reaction Methods 0.000 description 76
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 48
- 238000006243 chemical reaction Methods 0.000 description 38
- 238000002347 injection Methods 0.000 description 36
- 239000007924 injection Substances 0.000 description 36
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 36
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 32
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- 238000000034 method Methods 0.000 description 31
- 125000000538 pentafluorophenyl group Chemical group FC1=C(F)C(F)=C(*)C(F)=C1F 0.000 description 29
- 238000003756 stirring Methods 0.000 description 29
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 28
- 238000000576 coating method Methods 0.000 description 27
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 18
- 238000005481 NMR spectroscopy Methods 0.000 description 17
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 13
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- 229940126062 Compound A Drugs 0.000 description 10
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 150000004982 aromatic amines Chemical class 0.000 description 10
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 10
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
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- 238000001914 filtration Methods 0.000 description 9
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- UUEVFMOUBSLVJW-UHFFFAOYSA-N oxo-[[1-[2-[2-[2-[4-(oxoazaniumylmethylidene)pyridin-1-yl]ethoxy]ethoxy]ethyl]pyridin-4-ylidene]methyl]azanium;dibromide Chemical compound [Br-].[Br-].C1=CC(=C[NH+]=O)C=CN1CCOCCOCCN1C=CC(=C[NH+]=O)C=C1 UUEVFMOUBSLVJW-UHFFFAOYSA-N 0.000 description 6
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- 238000002360 preparation method Methods 0.000 description 5
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- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 5
- JRTIUDXYIUKIIE-KZUMESAESA-N (1z,5z)-cycloocta-1,5-diene;nickel Chemical compound [Ni].C\1C\C=C/CC\C=C/1.C\1C\C=C/CC\C=C/1 JRTIUDXYIUKIIE-KZUMESAESA-N 0.000 description 4
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- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 3
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- OOLZXLYYPCOPQZ-UHFFFAOYSA-N tripropylsulfanium Chemical compound CCC[S+](CCC)CCC OOLZXLYYPCOPQZ-UHFFFAOYSA-N 0.000 description 1
- QKFJVDSYTSWPII-UHFFFAOYSA-N tris(4-methylphenyl)sulfanium Chemical compound C1=CC(C)=CC=C1[S+](C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 QKFJVDSYTSWPII-UHFFFAOYSA-N 0.000 description 1
- ZMOJTPABCOWEOS-UHFFFAOYSA-N tris(4-tert-butylphenyl)sulfanium Chemical compound C1=CC(C(C)(C)C)=CC=C1[S+](C=1C=CC(=CC=1)C(C)(C)C)C1=CC=C(C(C)(C)C)C=C1 ZMOJTPABCOWEOS-UHFFFAOYSA-N 0.000 description 1
- BWHDROKFUHTORW-UHFFFAOYSA-N tritert-butylphosphane Chemical compound CC(C)(C)P(C(C)(C)C)C(C)(C)C BWHDROKFUHTORW-UHFFFAOYSA-N 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910001456 vanadium ion Inorganic materials 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/22—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing two or more pyridine rings directly linked together, e.g. bipyridyl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D219/00—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
- C07D219/02—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/22—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed systems contains four or more hetero rings
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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/04—Nickel compounds
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- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/02—Boron compounds
- C07F5/027—Organoboranes and organoborohydrides
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
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- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/18—Metal complexes
Definitions
- the present invention relates to a polymer light emitting composition, a polymer light emitting solution composition, and a polymer light emitting device (polymer LED) using the same.
- polymer luminescent materials unlike high molecular weight luminescent materials (polymer luminescent materials), unlike low molecular weight luminescent materials, they are soluble in solvents and can form a luminescent layer in a light emitting device by a coating method, meeting the requirements for a larger device area. For this reason, various polymer light emitting materials have been proposed in recent years (for example, Advanced Materials Vol. 12 1737-1750 (2000)).
- the light emitting element has a long life, that is, the degree of decrease in luminance over time due to driving is small.
- An object of the present invention is to provide a composition which can provide a light-emitting element having a longer lifetime when used in a light-emitting layer of a light-emitting element.
- the present inventors have conducted intensive studies to solve the above-mentioned problems. Directly or via a linking group, or has two or more Group 13 atoms, all of which have an electron-withdrawing aryl group or an electron-withdrawing group, respectively.
- a composition containing an ion pair having an anion having a specific structure that is directly or via a linking group to a heterocyclic group is used as a material for a light emitting device, the life of the device is prolonged. And found the present invention.
- the present invention provides a polymer light-emitting body set including a polymer light-emitting body and an ion pair.
- Y 1 represents a group 13 atom
- Ar 1 represents an aryl group having an electron withdrawing group or a monovalent heterocyclic group having an electron withdrawing group
- Q 1 represents an oxygen atom or a direct bond.
- X 1 represents an octylogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, an alkenyl group, Group, aryl alkenyl group, aryl alkynyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, substituted amino group, amide group, acid imide group, acyloxy group, monovalent heterocyclic group, heteroaryl Represents a aryloxy group, a heteroarylthio group, a cyano
- Y 2 represents a group 13 atom
- Ar 2 represents an aryl group having an electron withdrawing group or a monovalent heterocyclic group having an electron withdrawing group
- Q 2 represents an oxygen atom
- X 2 represents a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, or an alkenyl group.
- the present invention relates to a polymer luminescent material solution composition containing a solvent in addition to the polymer luminescent material composition.
- the anion is represented by the above formula (la), (1) b), characterized by (2) or (3).
- Y 1 in the formulas (la) and (lb) represents a Group 13 atom, preferably boron, aluminum, or gallium, and more preferably boron.
- Ar 1 in the formulas (1a) and (lb) represents an aryl group having an electron-withdrawing group or a monovalent heterocyclic group having an electron-withdrawing group.
- the electron-withdrawing group refers to an atom or a group of atoms that attracts electrons by a resonance effect or an inducing effect.
- examples thereof include an alkyloxycarbonyl group, an aryloxycarbonyl group, an arylalkyloxycarbonyl group, a heteroaryloxycarbonyl group, and a perfluoroalkyl group.
- examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, and a fluorine atom is preferred.
- the acryl group usually has about 2 to about 20 carbon atoms. Specific examples thereof include acetyl, propionyl, butyryl, isoptyryl, pivaloyl, benzoyl, trifluoroacetyl, and pentafluoro. Examples thereof include a lobenzoyl group.
- Alkoxycarbonyl groups usually have about 2 to about 20 carbon atoms, and specific examples thereof include methoxycarbonyl, ethoxycarbonyl, propyloxycarbonyl, i-propyloxycarbonyl, butoxycarbonyl, i 1-butoxycarbonyl group, t-butoxycarbonyl group, pentyloxycarbonyl group, hexyloxycarbonyl group, cyclohexyloxycarbonyl group, heptyloxycarbonyl group, octyloxycarbonyl group, 2- Ethylhexyloxycarbonyl, nonyloxycarbonyl, decyloxycarbonyl, 3,7-dimethyloctyloxycarbonyl, lauryloxycarbonyl, trifluoromethoxycarbonyl, pentafluoro Ethoxycarponyl group, perfluorobutoxy Carboxymethyl group, hexyl O carboxymethyl Cal Poni Le group to Pafuruo port,
- aryloxyl propyl groups usually with the same number of carbon atoms? About 60, and specific examples thereof include a phenoxycarbonyl group, ( ⁇ -(: 12 alkoxy phenoxycarbonyl) And a C, 2 aryleylphenoxycarponyl group, a 1-naphthyloxycarponyl group, a 2-naphthyloxycarbonyl group, a penfluorofluorophenyloxy group, and the like.
- the arylalkyloxycarbonyl group usually has about 8 to about 60 carbon atoms, and specific examples thereof include a phenyl C, to C ⁇ 2 alkoxycarbonyl group and a ( ⁇ to (: 12 alkoxyphenyl). Two-way C, ⁇ C 1 2 alkoxycarbonyl group, ⁇ C 1 2 alkylphenyl- 2 alkoxycarbonyl group, 1-naphthyl-( ⁇ ⁇ ( 1 2 alkoxycarbonyl group, 2-naphthyl- C! ⁇ C, 2 alkoxyl And the like.
- Examples include a xycarponyl group, an imidazolyloxycarponyl group, a pyrazolyloxycarponyl group, a triazolyloxyl-luponyl group, an oxazolyloxyl-carponyl group, a thiazoloxyl-loxyl-ponyl group, and a thiadiaz
- a perfluoroalkyl group represents a group in which all hydrogen atoms on a linear, branched or cyclic alkyl group have been substituted with fluorine, and usually has about 1 to 20 carbon atoms.
- the aryl group having an electron-withdrawing group usually has about 6 to 60 carbon atoms, and specific examples thereof include a phenyl group, ⁇ , to (: 12 alkoxyphenyl groups (C, to C are carbon atoms having 1 carbon atom). The same applies to the following.), Ci to C 12 alkylphenyl, 11-naphthyl, 21-naphthyl and the like are substituted by one or more of the above electron-withdrawing groups. Can be
- the monovalent heterocyclic group having an electron-withdrawing group has usually about 2 to 60 carbon atoms, and specific examples thereof include a phenyl group, a ( ⁇ to ( ⁇ 2 alkyl phenyl group, a pyrrolyl group, and a furyl group. , a pyridyl group, C, -C 12 alkyl pyridyl group, which imidazolyl group, Pi Razoriru group, Toriazoriru group, Okisazoriru group, thiazole Ichiru group, one or more of the electron-withdrawing group thiadiazole Ichiru group obtained by substituting Is exemplified.
- Ar 1 include the following groups (I) to (V).
- perfluoroaryl group examples include a penfluorofluorophenyl group, a heptafluoro-11-naphthyl group, a heptafluoro-2-naphthyl group, a nonafluoro-1-biphenyl group, a nonafluoro-2-biphenyl group, and a nonafluoro-1-anthracenyl group. And a nonafluoro-2-anthracenyl group and a nonafluoro-9-anthracenyl group.
- aryl group having an electron-withdrawing group and the monovalent hetero group having an electron-absorbing H ′ raw group those having a fluorine atom or a trifluoromethyl group are preferable (the above formulas (III) and (IV) ) And (V)), and a perfluoroaryl group (formula (V)) is more preferred.
- Q 1 in the formulas (1a) and (lb) represents an oxygen atom or a direct bond.
- X 1 in the formulas (1a) and (lb) represents a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, a 7arylthio group, an arylalkyl group, or an arylalkylo group.
- halogen atom in X 1 examples include fluorine, chlorine, bromine and iodine.
- the alkyl group may be linear, branched or cyclic, and may have a substituent.
- the alkyl group usually has about 1 to 20 carbon atoms. Specific examples thereof include a methyl group, an ethyl group, Propyl, i-propyl, butyl, i-butyl, t-butyl, pentyl, hexyl, cyclohexyl, heptyl, octyl, 2-ethylhexyl, nonyl, Examples include a decyl group, a 3,7-dimethyloctyl group, a lauryl group, a trifluoromethyl group, a pentafluoroethyl group, a perfluorobutyl group, a perfluorohexyl group, and a perfluorooctyl group.
- the alkyloxy group may be linear, branched or cyclic, and may have a substituent.
- the alkyloxy group usually has about 1 to 20 carbon atoms, and specific examples thereof include a methoxy group and an ethoxy group.
- the alkylthio group may be straight-chain, branched or cyclic, may have a substituent, and usually has about 1 to 20 carbon atoms. Specific examples thereof include a methylthio group, an ethylthio group, Propylthio, i-propylthio, butylthio, i-butylthio, t-butylthio, pentylthio, hexylthio, cyclohexylthio, heptylthio, octylthio, 2-ethylhexylthio, nonylthio Group, decylthio group, 3,7-dimethyloctylthio group, lauri Examples thereof include a luthio group and a trifluoromethylthio group.
- the aryl group may have a substituent, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenyl group, ⁇ , to (: 12 alkoxyphenyl group (C, to C 12 Represents that the number of carbon atoms is 1 to 12. The same applies to the following.), To (: 12 alkylphenyl group, 11-naphthyl group, 2-naphthyl group, pentafluorophenyl group, etc.).
- the aryloxy group may have a substituent on the aromatic ring, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenoxy group, an ( ⁇ - ⁇ -alkoxy phenoxy group, and a CV-C 12 alkylphenoxy groups, 1 one Nafuchiruokishi group, such as 2-Nafuchiruokishi group, pen evening fluorophenyl O alkoxy groups.
- the arylthio group may have a substituent on the aromatic ring, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenylthio group and ( ⁇ - Examples thereof include a thiothio group, a C 1, -C, 2 alkylphenylthio group, a 1-naphthylthio group, a 2-naphthylthio group, and a pentafluorophenylthio group.
- the arylalkyl group may have a substituent, and usually has about 7 to 60 carbon atoms. Specific examples thereof include phenyl ( ⁇ ⁇ ( 12 alkyl group, ⁇ ⁇ (: ⁇ ⁇ Rukokishifue two Lou -C, 2 alkyl group, C, ⁇ C 12 Arukirufue two Roux C, ⁇ C 12 alkyl group, 1 one-naphthyl - ⁇ ⁇ 12 alkyl group, 2 one Nafuchiru C, etc. -C 12 alkyl group Illustrated.
- the arylalkyloxy group may have a substituent, and usually has a carbon number of about 7 to 60.
- substituents include phenyl- 2 to 12 alkoxy groups and Ci to d2 alkoxy groups.
- the arylalkylthio group may have a substituent, and usually has about 7 to 60 carbon atoms, and specific examples thereof include phenyl C, to C, 2 alkylthio groups, and C, to C 12 Alkoxyphenyl— (:, to (:, 2 alkylthio groups,. Alkylphenyl C, to C, 2 alkylthio groups, 1-naphthyl. ⁇ Alkylthio group, 2 One naphthyl - such as ⁇ d 2 alkylthio groups.
- the alkenyl group usually has about 2 to 20 carbon atoms, and specific examples thereof include a vinyl group, a 1-propylenyl group, a 2-propylenyl group, a 3-propylenyl group, a butenyl group, a pentenyl group, and a hexenyl group. , A heptenyl group, an octenyl group and a cyclohexenyl group.
- the alkenyl group also includes an alkenyl group such as a 1,3-butenyl group.
- the alkynyl group usually has about 2 to 20 carbon atoms, and specific examples thereof include ethynyl, 1-propynyl, 2-propynyl, butynyl, pentynyl, hexynyl, heptenyl, and octynyl. And a cyclohexylethynyl group.
- the alkynyl group also includes an alkenyl group such as a 1,3-butadinyl group.
- the arylalkyl group usually has about 8 to 50 carbon atoms, and the aryl group and the alkenyl group in arylalkyl are the same as the aryl group and the alkenyl group described above. Specific examples thereof include 1-aryl vinyl group, 2-arylvinyl group, 1-aryl-11-propylenyl group, 2-aryl-1 monopropylenyl group, 2-aryl-2-propylenyl group, 3 —Aryl-1 2-propylenyl group and the like. Also included are arylaryl groups such as 4-aryl1,3-butenylenyl groups.
- the arylalkyl group usually has about 8 to 50 carbon atoms, and the aryl group and the alkynyl group in the arylalkyl group are the same as the above aryl group and alkynyl group, respectively. Specific examples thereof include an arylethynyl group, a 3-aryl-1-propionyl group, and a 3-aryl-2-propionyl group. Also included are arylalkazinyl groups such as 4-aryl1,3-butydinyl.
- Examples of the substituted silyloxy group include a silyloxy group (H 3 Sio—) substituted with 1, 2 or 3 groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group.
- a silyloxy group (H 3 Sio—) substituted with 1, 2 or 3 groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group. can give.
- the alkyl group or the monovalent heterocyclic group may have a substituent.
- the substituted silyloxy group usually has about 1 to 60 carbon atoms, and preferably 3 to 30 carbon atoms. Specific examples thereof include a trimethylsilyloxy group, a triethylsilyloxy group, and a tri_n-propylsilyloxy group. , Tree i-Provylsilyloxy, t-butylsilyldimethylsilyloxy, triphenylsilyloxy, tri-p-xylylsilyloxy, tribenzylsilyloxy, diphenyl Examples include a methylsilyloxy group, a t-butyldiphenylsilyloxy group, and a dimethylphenylsilyloxy group.
- Examples of the substituted silylthio group include a silylthio group (H 3 Si S—) substituted with one, two, or three groups selected from an alkyl group, an aryl group, an arylalkyl group, and a monovalent heterocyclic group.
- a silylthio group H 3 Si S—
- the alkyl group, aryl group, arylalkyl group or monovalent heterocyclic group may have a substituent.
- the substituted silylthio group usually has about 1 to 60 carbon atoms, preferably 3 to 30 carbon atoms, and specific examples thereof include a trimethylsilylthio group, a triethylsilylthio group, a tri-n-propylsilylthio group, Tree i-propylsilylthio group, t-butylsilyldimethylsilylthio group, triphenylsilylthio group, tri-p-xylylsilylthio group, tribenzylsilylthio group, diphenylmethylsilylthio group, t-butyldiphenylsilylthio group And a dimethylfluorosilylthio group.
- Examples of the substituted silylamino group include a silylamino group substituted with 1 to 6 groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group (H 3 Si NH— or ( H 3 S i) 2 N—).
- the alkyl group, aryl group, arylalkyl group and monovalent heterocyclic group may have a substituent.
- the substituted silylamino group usually has about 1 to about 120 carbon atoms, and preferably has about 1 to about 120 carbon atoms.
- Specific examples thereof include a trimethylsilylamino group, a triethylsilylamino group, a tree n-propylsilylamino group, a tree i-propylsilylamino group, a t-butylsilyldimethylsilylamino group, and a triphenyl.
- Silylamino Group tri-P-xylylsilylamino group, tribenzylsilylamino group, diphenylmethylsilylamino group, t-butyldiphenylsilylamino group, dimethylphenylsilylamino group, di (trimethylsilyl) amino group, di (triethylsilylamino group) A) amino group, di (tree n-propylsilyl) amino group, di (tree i-propylsilyl) amino group, di (t-butylsilyldimethylsilyl) amino group, di (triethylsilyl) amino group, di (Tree p-xylylsilyl) amino group, di (tribenzylsilyl) amino group, di (diphenylmethylsilyl) amino group, di (t-butyldiphenylsilyl) amino group, di (dimethylphenylsilyl) amino group And the like.
- Examples of the substituted amino group include an amino group substituted with one or two groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group.
- the alkyl group, aryl group, and aryl group The reel alkyl group or the monovalent heterocyclic group may have a substituent.
- the substituted amino group usually has about 1 to 40 carbon atoms, and specific examples thereof include a methylamino group, a dimethylamino group, an ethylamino group, a methylamino group, a propylamino group, a dipropylamino group, an isopropylamino group, and a diisopropylamino group.
- the amide group usually has about 2 to 20 carbon atoms, and specific examples thereof include a formamide group, an acetoamide group, a propioamide group, a ptyramide group, a benzamide group, a trifluoroacetamide group, a pentafluorobenzamide group, Examples thereof include a diformamide group, a diacetoamide group, a dipropioamide group, a dibutyroamide group, a dibenzamido group, a ditrifluoroacetamide group, and a dipentafluorobenzobenzamide group.
- Examples of the acid imide group include a residue obtained by removing a hydrogen atom bonded to the nitrogen atom from the acid imide, which usually has about 2 to 60 carbon atoms, and preferably 2 to 20 carbon atoms.
- Specific examples of the acid imide group include the following groups.
- the acyloxy group usually has about 2 to 20 carbon atoms, and specific examples thereof include an acetoxy group, a propionyloxy group, a petyryloxy group, and an isoptyryloxy group.
- the monovalent heterocyclic group refers to the remaining atomic group obtained by removing one hydrogen atom from a heterocyclic compound, and usually has about 2 to 60 carbon atoms. Specific examples thereof include a phenyl group, a C (: ⁇ Examples thereof include an alkylphenyl group, a pyrrolyl group, a furyl group, a pyridyl group, an alkylpyridyl group, an imidazolyl group, a pyrazolyl group, a triazolyl group, an oxazolyl group, a thiazolyl group, and a thiadiazole group.
- the heteroaryloxy group (the group represented by Q 5 -0—, Q 5 represents a monovalent heterocyclic group) usually has about 2 to 60 carbon atoms, and specific examples thereof include chenyloxy. group, the alkyl chain alkylsulfonyl O alkoxy group, Piroriruokishi group, Furiruoki sheet group, Pirijiruokishi group, C, -C 12 alkyl pyridyl O alkoxy group, an imidazolyl Okishi group, a pyrazolyl O alkoxy group, tri ⁇ sledding Ruo alkoxy group, O hexa sledding Ruo alkoxy group And thiazolyloxy and thiadiazoloxy groups.
- Q 5 is preferably a monovalent aromatic heterocyclic group.
- a heteroarylthio group (indicated by Q 6 _S—, Q 6 represents a monovalent heterocyclic group), which usually has about 2 to 60 carbon atoms. Buto group, CiC alkyl chelyl mercapto group, pyrrolyl mercapto group, furyl mercapto group, pyridyl mercapto group, C, -C, 2- alkylpyridyl mercapto buto group, imidazolyl mercapto group, virazolyl mercapto group, triazolyl mercapto group Groups, oxazolyl mercapto group, thiazole mercapto group, thiadiazol mercapto group and the like.
- Q 6 a monovalent aromatic heterocyclic group is preferable.
- the atoms of groups 14, 14, 15, 16, and 17 include boron, carbon, nitrogen, oxygen, fluorine, aluminum, silicon, phosphorus, and sulfur atoms. , Chlorine, scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, gallium, germanium, selenium, bromine, yttrium, zirconium Atom, molybdenum atom, palladium atom, hafnium atom, tungsten atom, platinum atom and the like, and preferably the case where the atomic weight is 50 or less.
- the b-valent aliphatic hydrocarbon group for Z 1 represents an atomic group obtained by removing b hydrogen atoms from an aliphatic hydrocarbon, and may be linear, branched or cyclic, and may have a substituent. Often, the carbon number is usually about 1-20. b is an integer of 2 to 6, but b does not exceed the number of hydrogens of the aliphatic hydrocarbon.
- aliphatic hydrocarbon examples include methane, ethane, propane, cyclopropane, butane, cyclobutane, 2-methylpropane, pentane, cyclopentane, 2-methylbutane, 2,2-dimethylpropane, hexane, and cyclohexane.
- the b-valent aromatic hydrocarbon group for Z 1 represents an atomic group obtained by removing b hydrogen atoms from the aromatic ring of the aromatic hydrocarbon, and may have a substituent on the aromatic ring, Is usually about 6 to 60. However, b does not exceed the number of hydrogens on the aromatic ring of the aromatic hydrocarbon.
- aromatic hydrocarbon examples include benzene, (( 12 alkoxybenzene (( ⁇ ⁇ denotes a carbon number of 1 to 12. The same applies to the following.), C, (: 1 2 alkylbenzene, naphthalene, anthracene, Fuenantoren, tetracene, pen evening Sen is exemplified.
- aromatic hydrocarbons Represents an atomic group excluding two hydrogen atoms, usually having 6 to 60 carbon atoms, preferably 6 to 20 carbon atoms, and a phenylene group (for example, formulas 1 to 3 in the figure below), naphthalene diene Yl group (Formulas 4 to 13 in the figure below), anthracenylene group (Formulas 14 to 19 in the figure below), biphenylene group (Formulas 20 to 25 in the figure below), and triphenylene group (Formula 26 in the figure below) To 28), a condensed ring compound group (formulas 29 to 38 in the following figure), and the like.
- the carbon number of the divalent aromatic hydrocarbon group does not include the carbon numbers of the substituents R ',, and.
- R and '' each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, or an arylalkylthio group.
- the b-valent aromatic hydrocarbon group includes (b- 2) R,,, and, from the above-mentioned examples (1 to 38) of the divalent aromatic hydrocarbon group. Residues excluding are listed.
- the heterocyclic group b locus in Z 1 is derived from a heterocyclic compound, it refers to a group having a b number of binding site. Examples of the binding site include a site binding to an adjacent atom by a covalent bond (covalent binding site) and a site binding by a coordination bond (coordination binding site). Examples of the b-site heterocyclic group include atomic groups having b coordination sites obtained by removing at least one hydrogen atom from a heterocyclic compound. It may have a substituent, and usually has about 2 to 60 carbon atoms, and preferably 2 to 20 carbon atoms.
- the following are specific examples of the divalent heterocyclic group.
- a divalent heterocyclic group containing nitrogen As a hetero atom, a divalent heterocyclic group containing nitrogen; a pyridinediyl group (formulas 39 to 44 in the figure below), a diazaphenylene group (formulas 45 to 48 in the figure below), a quinolinediyl group (formula 49 in the figure below) 663), quinoxalinedyl group (formulas 64 to 68 in the figure below), acridinediyl group (formulas 69 to 72 in the figure below), viviridylgyl group (formulas 73 to 75 in the figure below), Groups (Equations 76-78 in the figure below), etc.
- a group with a fluorene structure containing silicon, nitrogen, sulfur, selenium, etc. as a hetero atom (Formula 79-93 in the figure below). Further, it is desirable from the viewpoint of luminous efficiency to have an aromatic amine monomer such as a carbazole triphenylamine diyl group of the formulas 82 to 84 containing a nitrogen atom.
- 5-membered condensed heterocyclic group containing silicon, nitrogen, sulfur, selenium, etc. as a hetero atom (Formula 99-109 in the figure below), benzothiadiazole-4,7-diyl group or benzoxadiazole- 4, 7-diyl group and the like.
- R is independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, or an arylalkylthio group.
- the monovalent bidentate heterocyclic group include groups in which one of the bonding hands of the divalent heterocyclic group exemplified in the above 39 to 118 is substituted with R and further has a coordination bond on a hetero atom. And the following groups.
- Z 1 and V 1 cannot be the same.
- Examples of group 16 atoms in V 1 ′ include an oxygen atom, a sulfur atom, a selenium atom, and a tellurium atom, and are preferably an oxygen atom and a sulfur atom.
- divalent aromatic hydrocarbon group for V 1 are the same as those for Z 1 above.
- a represents an integer of 1 to 3, and a is 2 or 3. It is more preferable that a is 3.
- k represents an integer of 1 or more and 4 or less, and from the viewpoint of prolonging the life of the element, k is preferably 3 or more, and more preferably k is 4.
- b represents an integer of 2 or more and 6 or less.
- V 1 is- C-N-,
- c represents an integer of 1 to 6.
- anion represented by the above formula (la) include the anion represented by the following VI or VII.
- anion represented by the formula (la) preferably when from the viewpoint of long life is A r 1 Gapa one Furuoroariru group, and more preferably when a is 2 or 3.
- Z 1 or V 1 is —C ⁇ N—.
- an anion represented by the above formula VII is exemplified.
- the above formula (la) is the following formula (5-1) or (5-2). .
- Ar 1 is a perfluoroaryl group from the viewpoint of prolonging the life, and more preferably, This is the case when k is 3 or 4.
- a r 1 b is.
- a r 1 b representing the phenylene Le group which is replacement by 2 or more selected from fluorine and triflate Ruo Russia methyl group may be the same or different each
- Examples thereof include those represented by the following formulas (12) and (13), and those represented by the formula (12) are preferable.
- X has the same meaning as described above.
- a r le represents a par full O lower aryl group, f is an integer of 3 or 4.
- the ion pair used in the composition of the present invention is characterized in that the anion is represented by the above formula (la), (1b), (2) or (3).
- Y 2 represents a group 13 atom
- Ar 2 represents an aryl group having an electron withdrawing group or a monovalent heterocyclic group having an electron withdrawing group
- Q 2 represents an oxygen atom or Represents a direct bond
- X 2 represents a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, or an alkenyl group.
- alkynyl group, an arylalkenyl group, an arylalkynyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a substituted amino group, an amide group, an acid imide group, an acyloxy group, a monovalent heterocyclic group, Represents a heteroaryloxy group, a heteroarylthio group, a cyano group or a nitro group, d and d ′ each independently represents 1 or 2, and V 2 represents 1 Group 6 atom, divalent aliphatic hydrocarbon group, divalent aromatic hydrocarbon group, bidentate heterocyclic group, C 3 N— or —N N—, multiple Y 2 , Ar 2 , Q 2 and V 2 may be the same or different, and when there are a plurality of X 2 , they may be the same or different, and e represents an integer of 1 to 6.) is there.
- group 13 atoms in Y 2 are the same as those in Y 1 above, and include an aryl group having an electron withdrawing group in Ar 2 , and a monovalent heterocyclic ring having an electron withdrawing group.
- the definition, specific examples, and the like of the group are the same as those in Ar 1 described above.
- Halogen atom in X 2 alkyl groups, Arukiruokishi group, an alkylthio group, Ariru group, Ariruokishi group, ⁇ Li one thio group, ⁇ reel alkyl group, ⁇ Li one Ruarukiruokishi group, ⁇ reel alkyl thio group, an alkenyl group, an alkynyl group, ⁇ Reel alkenyl, arylalkynyl, substituted silyloxy, substituted silyl
- the definitions, specific examples, and the like of the ruthio group, the substituted silylamino group, the substituted amino group, the amide group, the acid imide group, the acyloxy group, the monovalent heterocyclic group, the heteroaryloxy group, and the heteroarylthio group are as described above.
- a r 2 from the viewpoint of long life is a par Furuoroariru group
- Ar 2 is Pafuruo Roariru group
- the ion pair used in the composition of the present invention is characterized in that the anion is represented by the above formula (la), (1b), (2) or (3).
- Specific examples of the group 13 atom in Y 3 are the same as those in Y 1 above, and the definition and specific examples of the aryl group having an electron withdrawing group and the monovalent heterocyclic group having an electron withdrawing group in Ar 3 examples etc., the a r Ri therewith Similarly der in 1, 16 atom in V 3, divalent aliphatic hydrocarbon group, a divalent Kaoru aromatic hydrocarbon group, bidentate heterocyclic group definition, specific examples, etc., Ru similar der and Re its in the V 1.
- a substituent may be present on the aromatic hydrocarbon ring, heterocycle or hydrocarbon chain.
- Ar 3 is a perfluoroaryl group from the viewpoint of extending the life.
- an ion pair containing the anion represented by (la) is preferable.
- the cation is a carpocation or an element selected from the group consisting of nitrogen, oxygen, phosphorus, sulfur, chlorine, selenium, bromine, tellurium, and iodine, and hydrogen ion. And metal cations.
- the carpocation may be monovalent or divalent or higher polyvalent, Examples include chilidium, neopentylinium, cycloprobenilium, phenylium, anthrium, and triphenylmethyl.
- the nitrogen atom may be monovalent or divalent or higher polyvalent, and may be an aliphatic ammonium salt represented by the following formula:
- R 3 and R 4 are each independently an alkyl group, an alkyloxy group, a 7-reel group, an aryloxy group, an arylalkyl group, an arylalkyloxy group, an acyl group, an acyloxy group, a monovalent heterocyclic group Or a heteroaryloxy group.
- R 5 and R 6 are each independently a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group.
- T represents a direct bond, a divalent aliphatic hydrocarbon group, a divalent aromatic hydrocarbon group, an alkenylene group, an ethynylene group, or a divalent heterocyclic group.
- i and j each independently represent an integer of 0-4. When a plurality of R 5 and R 6 are present, they may be the same or different.
- the definitions and specific examples of the ring group, heteroaryloxy group and heteroarylthio group are the same as those described in X 1 and X 2 above.
- examples thereof include aldimines, ketimines, and hydrogen atoms on these N substituted by alkyl groups or the like.
- a residue obtained by removing one hydrogen atom from such a compound which usually has about 2 to 60 carbon atoms, and preferably 2 to 20 carbon atoms.
- groups represented by the following structural formulas are exemplified.
- the substituted silyl group means a silyl group substituted with one, two or three groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group.
- the number of carbon atoms is usually about 1 to 60, preferably 3 to 30.
- the alkyl group, aryl group, arylalkyl group or monovalent heterocyclic group may have a substituent.
- Trimethylsilyl group triethylsilyl group, tri-n-propylsilyl group, tri-i-propylsilyl group, t-butylsilyldimethylsilyl group, triphenylsilyl group, tri-p-xylylsilyl group, tribenzylsilyl group, diphenylmethylsilyl group , T-butyldiphenylsilyl group, dimethylphenylsilyl group, etc.
- Divalent aliphatic hydrocarbon group and divalent aromatic hydrocarbon group at T in the above formula (6) are defined and specific examples are the same as those described in V 1 , V 2 and V 3 above.
- the divalent heterocyclic group refers to an atomic group obtained by removing two hydrogen atoms from a heterocyclic compound, and usually has about 2 to 60, preferably 2 to 20 carbon atoms.
- the divalent heterocyclic group may have a substituent, and the carbon number of the divalent heterocyclic ring does not include the carbon number of the substituent.
- the alkenylene group usually has about 2 to 20 carbon atoms, and examples thereof include a vinylene group and a propylene group.
- the alkenylene group also includes an alkadierenylene group such as a 1,3-butagenylene group.
- the alkynylene group usually has about 2 to 20 carbon atoms, and examples thereof include an ethynylene group.
- the alkynylene group also includes a group having two triple bonds, for example, a 1,3-butanedinylene group.
- the oxygen atom may be monovalent or polyvalent having a valence of 2 or more, such as trimethyloxodium, triethyloxodium, tripropyloxodium, triptyoxonium, trihexyloxodium, and triphenyloxy.
- Examples include xonium, pyrinium, chromenium, and xantholium.
- the phosphorus atom may be monovalent or divalent or higher polyvalent, such as tetramethylphosphonium, tetraethylphosphonium, tetrapropylphosphonium, tetrabutylphosphonium, tetrahexylphosphonium, tetraphenyl.
- Examples include phosphonium, triphenylmethylphosphonium, and methyltriphenylphosphonium.
- the sulfur atom may be monovalent or polyvalent having a valence of 2 or more, such as trimethylsulfonium, triethylsulfonium, tripropylsulfonium, and triptych.
- Aliphatic sulfonium such as rusulfonium, trihexylsulfonium, aromatic sulfonium such as triphenylsulfonium, tri (4-methylphenyl) sulfonium, tri (4-t-butylphenyl) sulfonium Examples thereof include methyl, methyldiphenylsulfonium, dimethylphenylsulfonium and onium represented by the following formula.
- the chlorine atom may be monovalent or divalent or higher polyvalent, such as dimethyl chloride, getyl chloronium, dipropyl chloronium, dibutyl chromium, diphenylchloronium, methylphenylchloro.
- the selenium atom may be monovalent or polyvalent having a valence of 2 or more.
- Trimethyl selenium, triethyl selenium, tripropyl selenium, triptyl selenium, trihexyl selenium, triphenyl selenium, tri (4-methyl phenyl) ) Selenium, tri (4-t-butylphenyl) selenium, methyl diphenyl selenium, dimethyl phenyl selenium are exemplified.
- the bromine atom may be monovalent or divalent or higher valent.Dimethyl bromonium, getyl bromonium, dipropyl bromodimethyl, dibutyl bromodimethyl, diphenyl bromodimethyl, methylphenyl bromodimethyl Is exemplified.
- the tellurium atom may be monovalent or divalent or higher polyvalent, such as trimethyl telluronium, triethyl telluronium, tripropyl tellurium, tributyltyl tellurium, trihexyl telluronium, trihexyl telluronium, triphenyl telluronium, Examples are l- (4-methylphenyl) telluronium, tri (4-t-butylphenyl) telluronium, methyldiphenylterulonium, and dimethylphenylterulonium.
- the iodine atom may be monovalent or divalent or higher valent.
- the metal cation examples include a cation of an alkaline metal, a cation of an alkaline earth metal, a cation of a rare earth, and a cation of a transition metal, and may be a monovalent or divalent or higher valent. Since quenching may occur due to the heavy atom effect, the atomic weight is preferably less than 50.
- examples of the alkali metal cation include lithium ion, sodium ion, potassium ion, rubidium ion, cesium ion, and francium ion.
- Alkaline earth metal cations include beryllium ion, magnesium ion, calcium ion, strontium ion, barium ion, (MgCl) + , (MgBr) +, and (Mgl) +.
- the cation of the rare earth, scandium ions include yttrium ions, the cations of the transition metals, titanium ions, zirconium ions, hafnium ions, vanadium ions, Kuromiumuion, [bis (77 5 - benzene) C r] +, manganese ions, iron ions, [(77 5 over cyclopentadienyl) (77 6 - benzene) F e] + [(77 5 - Shikuropen evening Jeniru). (7 6 -? preparative Ruen) Fe] + [ (77 5 - Shikuropen evening Jeniru) (7 6 -? 1 Mechirunafu Tallinn) F e] +, [?
- the following compounds are specifically exemplified as the ion pair used in the present invention.
- the following ion pairs are exemplified as those in which the cation is a carpocation.
- aromatic ammonium salts include, for example, 1-benzyl-2-cyanopyridinium tetrakis (pentafluorophenyl) porate, 1- (naphthylmethyl) -12-cyanopyridinium tetrakis (pentafluoro) (Phenyl) porate, N, N-dimethylanilinium tetrakis (pentafluorophenyl) porate, 1-butyl-3-methylimidazolium tetrakis (pentafluorophenyl) porate, 1-ethyl-3-methylimidazolidium tetrakis (pen Fluorophenyl) porate, 1-year-old octyl-3-methylimidazolium
- Aliphatic ammonium salts include tetrabutylammonium tetrakis (pentafluorophenyl) porate, tetraethylammonium tetra Kiss (Penyu fluorophenyl) porate.
- aromatic amine salts include tris (4-bromophenyl) aminium tetrakis (pentafluorophenyl) borate, N, N, ⁇ ', ⁇ '-tetraphenyl-4,4'-biphenylamine Bis (Tetrakis (Penyu Fluo mouth phenyl) porate).
- Aromatic diazodium salts can also be mentioned, such as phenyldiazonium tetrakis (pentafluorophenyl) porate.
- a novel compound represented by the following formula (10) as an aromatic ammonium salt-based compound in the formula, R 3 , R 4 , R 5 , R 6 , and ⁇ represent the same meaning as described above.
- Examples of the compound represented by the above formula (10) include the following compounds.
- the compound represented by the formula (10) is obtained, for example, by reacting a compound represented by the following formula (11) with L i [B (C 6 F 5 ) 4 ] ⁇ n (E t 2 O). Can be manufactured '.
- R 3 , R 4 , R 5 , R 6 , and T represent the same meaning as described above.
- X 1 — and X 2 — independently represent a halide ion, an alkylsulfonate ion, or an arylsulfonate ion.
- halide ions fluoride ions, chloride ions, bromide ions
- alkylsulfonate ion examples include a methanesulfonate ion, an ethanesulfonate ion, and a trifluoromethanesulfonate ion.
- arylsulfonate ions include benzenesulfonate ion and p-toluenesulfonate ion.
- aromatic ammonium salt system include the following ion pairs: ' ⁇ H Q- + NHM3 ⁇ 4
- aliphatic ammonium salt system examples include the following ion pairs.
- ion pairs are exemplified as those based on aromatic amidium salts.
- aromatic diazodium salts include the following ion pairs.
- cation is a phosphorus atom
- tetraphenylphosphonium tetrakis (pentafluorophenyl) porate is tetraphenylphosphonium tetrakis (pentafluorophenyl) porate.
- Other examples of the cation having a phosphorus atom atom include the following ion pairs.
- Examples of the cation having a sulfur atom of an atom of an aromatic sulfonium salt include bis [4- (diphenylsulfonio) phenyl] sulfide tetrakis (pentafluorophenyl) borate, Diphenyl-41- (phenylthio) phenylsulfonium tetrakis (pentafluorophenyl) porate, triphenylsulfoniumtetrakis (pentafluorophenyl) porate, bis [4- (di (4- ( 2-Hydroxyethoxy)) phenylsulfonyl) phenyl] sulfide tetrakis (fluorophenylphenyl).
- Other examples of the cation having a sulfur atom atom include the following ion pairs.
- Examples of the cation having an iodine atom as an ion include those having an aromatic rhododium salt, examples of which include diphenyleodonium tetrakis (pentafluorophenyl) porate, bis (dodecylphenyl) eodonium tetrakis (penyu). Fluorophenyl) porate, 4-methylphenyl 4 -— (1-1-methylethyl) phenyl-donium tetrakis (pentafluorophenyl) Porate [It is commercially available from Rhodia under the name of “RHODORS IL” photopolymerization initiator P 1-2074 ”. ].
- Other examples of the ion pair in which the cation is an iodine atom are given below.
- the cation is a metal cation
- a metal cation for example, (2,4-cyclopentadiene-11-yl) [(1-methylethyl) benzene] -Fe (II) tetrakis (pentafluorophenyl) Porate.
- Other examples of the cation being a metal cation include the following ion pairs. B (C3 ⁇ 4F5) s
- the present invention provides a novel ion pair, wherein the anion is represented by the following structural formula (5-1), and the cation is a pyridinium cation, a phosphonium cation, or an odonium cation. Things.
- Examples of the ion pair in which the cation is a pyridinium cation include the following compounds.
- Examples of the ion pair in which the cation is a phosphonium cation include the following compounds.
- Examples of ion pairs in which the cation is a rhododium cation include the following compounds. .
- the pyridinium salt, the phosphonium salt and the odonium salt are, for example, a compound represented by the following formula (7-1) and K [(C 6 F 5 ) 3 B—C ⁇ N—B (C 6 F 5 ) 3] Can be produced by reacting
- E 1+ x 1- (7-1) represents a pyridinium cation, a phosphonium cation or an eodonium cation.
- X 1 — represents a halide ion, an alkylsulfonate ion, or an arylsulfonate ion.
- halide ion examples include a fluoride ion, a chloride ion, a bromide ion, and an iodide ion.
- alkylsulfonate ion examples include methanesulfonate ion, ethanesulfonate ion and trifluoromethanesulfonate ion.
- Examples of the 7-sulfonate ion include a benzenesulfonate ion and a p-toluenesulfonate ion.
- the anion is represented by the following structural formula (5-2), and the cation is a pyridinium cation, a quaternary ammonium cation, a phosphonium cation, an oxonium cation, a sulfonium cation, or a sodium cation.
- the present invention provides a novel ion pair characterized by a certain feature. MC ⁇ N-B (C 6 F 5 ) 3 (5-2)
- M represents a nickel atom or a palladium atom.
- Examples of the ion pair in which the cation is a pyridinium cation include the following compounds.
- Examples of the ion pair in which the cation is a phosphonium cation include the following compounds.
- Examples of the ion pair in which the cation is a sulfonium cation include the following compounds.
- Examples of ion pairs in which the cation is a rhododium cation include the following compounds.
- the pyridinium salt, the phosphonium salt and the rhododium salt are, for example, a compound represented by the following formula (7-2) and K 2 [M ⁇ C ⁇ N—B (C 6 F 5 ) 3 ⁇ 4 ] It can be produced by reacting.
- E 2 + represents a pyridinium cation, a quaternary ammonium cation, a phosphonium cation, an oxonium cation, a sulfonium cation, or an odonium cation.
- X 2 - represents a halide ion, an alkylsulfonate ion, or an arylsulfonate ion.
- halide ion examples include the ions described in the above section.
- alkylsulfonate ion examples include the ions described in the above section.
- arylsulfone ion examples include the ions described in the above section.
- one kind or two or more kinds of ion pairs may be added to the polymer light emitting composition.
- the polymer light-emitting material used in the present invention generally has a number average molecular weight in terms of polystyrene of 10 3 to 10 8 .
- the polymer light-emitting materials of the present invention those which are conjugated polymer compounds are preferable.
- the conjugated polymer compound means a polymer compound in which delocalized electron pairs exist along the main chain skeleton of the polymer compound. As this delocalized electron, an unpaired electron or a lone electron pair may participate in resonance instead of a double bond.
- the polymer light-emitting material used in the present invention may be a homopolymer or a copolymer.
- examples thereof include polyfluorene [for example, Japanese Journal of Applied'Physics (Jpn. J. Ap. p 1. P hy s.) Volume 30, L 1941 (1991)], polyparaphenylene [for example, Advanced Material (Adv. Mater.) Volume 4, Page 36 (1992) ], Polypyrrole, polypyridine, polyaniline, polythiophene, etc.
- Polyarylenevinylenes such as polyparaphenylenevinylene and polychenylenevinylene (for example, WO98 / 27136)
- Examples of the repeating unit contained in the polyarylene-based polymer light-emitting material include an arylene group and a divalent heterocyclic group, and those having 20 to 100 mol% of these repeating units are preferable, Those composed of 99 mol% are more preferred. (Since the copolymerization ratio with aromatic amine is preferably 9: 1 to 20:80 in paragraph 187, this value is used.)
- the number of carbon atoms constituting the ring of the divalent heterocyclic group is usually about 3 to 60.
- Bipyridyldiyl group, phenanthine-containing lindyl group, X -0-, -S-, _Se-, one NR "—, — C (R,
- R4a R 5a (In the formula, A represents an atom or a group of atoms together with the four carbon atoms on the two benzene rings to complete a 5- or 6-membered ring; R 4a , R 4 b , R c , R 5 a , 51 ) and 1 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, Arylalkyl, arylalkyloxy, arylalkylthio, alkenyl, alkynyl, arylaryl, arylalkynyl, acyl, acyloxy, amide, acid imide, imine residue, Substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, cyano group,
- A represents an atom or a group of atoms together with the four carbon atoms on the two benzene rings in the formula (4) to complete a five-membered or six-membered ring; Although shown below, it is not limited to these.
- R, R ', and R''' each independently represent a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, or an arylthio group.
- R ′ is independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, or an arylalkylthio group.
- R '' independently represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, a 7-reel group, an aryloxy group, an arylthio group, an aryl Alkyl, arylalkyloxy, arylalkylthio, alkenyl, alkynyl, arylalkenyl, arylalkynyl, acyl, substituted silyl, substituted silyloxy, substituted silylthio, substituted silylamino Or represents a monovalent heterocyclic group.
- Halogen atom alkyl group, alkyloxy group, alkylthio group, aryl group, aryloxy group, arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, alkenyl in R, R ', R'' Group, alkynyl group, arylalkenyl group, arylalkynyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, substituted amino group, amide group, acid imido group, acryl group, acryloxy group, monovalent complex
- the definition and specific examples of the cyclic group are the same as those described in R 3 , R 4 , R 5 and R 6 above.
- one O—, one S—, one Se—, one NR ′ ′ —, one CR′R′— or one SirR′R′— are preferred, and -0_, -S-, one- C R′R′— is more preferred.
- the hydrogen atom on the benzene ring is a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, a 7-aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, or an aryl group.
- Alkylthio group alkenyl group, alkynyl group, arylalkenyl group, arylalkynyl group, acyl group, acyloxy group, amide group, acid imide group, imine residue, substituted amino group, substituted silyl group, substituted silyloxy group, substituted It may be substituted by a silylthio group, a substituted silylamino group, a cyano group, a nitro group or a monovalent heterocyclic group. When two substituents are present adjacent to the benzene ring, they may be bonded to each other to form a ring.
- the polymer light-emitting material used in the present invention may contain, for example, a repeating unit derived from an aromatic amine in addition to an arylene group and a divalent heterocyclic group. In this case, hole injection and transport properties can be imparted.
- the molar ratio of the repeating unit consisting of an arylene group and a divalent heterocyclic group to the repeating unit derived from an aromatic amine is usually in the range of 99: 1 to 20:80.
- a repeating unit represented by the following formula (8) is preferable.
- a r 4, A r 5 , A r 6 and A r 7 each independently represent a Ariren group or a divalent heterocyclic group.
- a r 8 , A r 9 and A r 1 Each independently represents an aryl group or a monovalent heterocyclic group.
- o and p each independently represent 0 or 1, and 0 ⁇ o + p ⁇ 2.
- arylene group and the divalent heterocyclic group are the same as those described in T above.
- specific examples of the aryl group and the monovalent heterocyclic group are described above in X 1 and X 2 Is the same as described above.
- repeating unit represented by the above formula (8) include the following structures.
- the hydrogen atom on the aromatic ring is a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, an alkenyl group, Alkynyl group, arylalkenyl group, arylalkynyl group, acyl group, acyloxy group, amide group, acid imide group, imine residue, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group , Cyano, nitro, monovalent heterocyclic, heteroaryloxy, heteroarylthio, It may be substituted with a substituent selected from an alkyloxycarbonyl group, an aryloxycarbonyl group, an arylalkyloxycarbon
- a repeating unit represented by the following formula (9) is particularly preferable.
- R 7 , R 8 and R 9 are each independently a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, Arylalkylthio group, alkenyl group, alkynyl group, arylalkenyl group, arylalkynyl group, acyl group, acyloxy group, amide group, acid imide group, imine residue, substituted amino group, substituted silyl group, Substituted silyloxy group, substituted silylthio group, substituted silylamino group, cyano group, nitro group, monovalent heterocyclic group, heteroaryloxy group, heteroarylthio group, alkyloxycarbonyl group, aryloxycarbonyl group , Arylalkyloxycarbonyl group, heteroaryloxycarbonyl group
- the polymer light-emitting material used in the present invention may be a random, block, or graft copolymer, or a polymer having an intermediate structure between them, for example, a random copolymer having a block property. Is also good. From the viewpoint of obtaining a polymer light-emitting material having a high quantum yield of light emission, a random copolymer having block properties or a block or graft copolymer is preferable to a completely random copolymer. If the main chain is branched and has three or more terminal groups, dendrimers are also included.
- the terminal group of the polymer light-emitting material used in the present invention is protected with a stable group, since if the polymerization active group is left as it is, the light-emitting characteristics and lifetime of the device may be reduced. Is also good.
- Those having a conjugate bond continuous with the conjugate structure of the main chain are preferable, and examples thereof include a structure bonded to an aryl group or a heterocyclic group via a carbon-carbon bond. Specific examples include the substituents described in Chemical Formula 10 of JP-A-9-45478.
- the polymer light-emitting material used in the present invention has a number average molecular weight of 10 in terms of polystyrene.
- the number average molecular weight is about 10 4 to 10 6 in terms of polystyrene.
- a polymer light emitting material having light emission in a solid state is preferably used.
- the method for synthesizing the polymer light-emitting material used in the present invention includes, for example,
- a method of polymerizing by a Suzuki coupling reaction, a method of polymerizing by a Grignard reaction, and a method of polymerizing by a Ni (0) catalyst are preferred because of easy control of the reaction.
- a polymer light-emitting material When a polymer light-emitting material is used as a light-emitting material for a polymer LED, its purity affects the light-emitting characteristics, so the monomer before polymerization must be purified by distillation, sublimation purification, recrystallization, etc. before polymerization. After the synthesis, it is preferable to perform purification treatment such as reprecipitation purification and fractionation by chromatography.
- the polymer light emitting composition of the present invention is characterized by containing a polymer light emitting body and an ion pair.
- the polymer light emitting composition is usually used. It is about 0.001 to 10 parts by weight, preferably 0.001 to 5 parts by weight, more preferably 0.001 to 1 part by weight, and still more preferably 0.01 to 1 part by weight.
- the polymer luminous body solution composition of the present invention is characterized by containing a polymer luminous body, an ion pair and a solvent. Using this solution composition, a light emitting layer can be formed by a coating method. The light emitting layer produced using this solution composition usually contains the polymer light emitting composition of the present invention.
- the solvent examples include liquid form, methylene chloride, dichloroethane, tetrahydrofuran, toluene, xylene, mesitylene, tetralin, decalin, n-butylbenzene and the like. Although it depends on the structure and molecular weight of the polymer light emitter, it can be usually dissolved in these solvents in an amount of 0.1% by weight or more.
- the amount of the solvent is usually about 1000 to 10000 parts by weight based on 100 parts by weight of the polymer light emitting body.
- composition of the present invention may optionally contain a dye, a charge transporting material, and the like.
- the polymer LED of the present invention has a light-emitting layer between an electrode comprising an anode and a cathode. Contains the polymer light emitting composition of the present invention.
- the polymer LED of the present invention has a light-emitting layer between electrodes comprising an anode and a cathode, and the light-emitting layer is formed using the solution composition of the present invention.
- the polymer LED of the present invention includes a polymer LED having an electron transport layer between a cathode and a light-emitting layer, a polymer LED having a hole transport layer between an anode and a light-emitting layer, A polymer LED in which an electron transport layer is provided between a cathode and a light emitting layer and a hole transport layer is provided between an anode and a light emitting layer is exemplified.
- the light emitting layer is a layer having a light emitting function
- the hole transport layer is A layer having a function of transporting electrons.
- An electron transporting layer has a function of transporting electrons.
- Layer Note that the electron transport layer and the hole transport layer are collectively called a charge transport layer. Two or more light emitting layers, hole transport layers, and electron transport layers may be used independently.
- the charge transport layers provided adjacent to the electrodes those having the function of improving the charge injection efficiency from the electrodes and having the effect of lowering the driving voltage of the element include the charge injection layer (hole injection layer). Layer, electron injection layer).
- the charge injection layer or the insulating layer having a thickness of 2 nm or less may be provided adjacent to the electrode in order to improve adhesion to the electrode and improve charge injection from the electrode.
- a thin buffer layer may be inserted at the interface between the charge transport layer and the light-emitting layer for the purpose of improvement and prevention of mixing.
- the order and number of layers to be laminated and the thickness of each layer can be appropriately used in consideration of luminous efficiency and device life.
- the polymer LED provided with the charge injection layer includes a polymer LED provided with a charge injection layer adjacent to a cathode, and a charge injection layer adjacent to an anode.
- Polymer LED provided.
- the charge injection layer include a layer containing a conductive polymer, a layer provided between the anode and the hole transport layer, and an intermediate layer between the anode material and the hole transport material contained in the hole transport layer.
- the electric conductivity of the conducting polymer is preferably from 10- 5 S / cm or more 10 3 S / cm, leakage between luminescent pixels in order to reduce the current 10 is more preferably less than 10 2 S / cm ssZcm, 10- 5 S / cm or more and 10 1 S / cm or less is more preferred.
- a suitable amount of ions are doped into the conducting polymer.
- the type of ions to be doped is an anion for the hole injection layer and a cation for the electron injection layer.
- anions include polystyrenesulfonate, alkylbenzenesulfonate, camphorsulfonate, and the like.
- cations include lithium, sodium, potassium, and tetrabutylammonium. And the like.
- the thickness of the charge injection layer is, for example, 1 nm to 100 nm, and preferably 2 nm to 50 nm.
- the material used for the charge injection layer may be appropriately selected depending on the relationship with the material of the electrode and the adjacent layer.
- the insulating layer having a thickness of 2 nm or less has a function of facilitating charge injection.
- the material for the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- a polymer LED provided with an insulating layer with a thickness of 2 nm or less Polymer LEDs provided with an insulating layer having a thickness of 2 nm or less, and polymer LEDs provided with an insulating layer having a thickness of 2 nm or less adjacent to the anode.
- Insulation layer with anode thickness of 2 nm or less
- Hole transport layer Z
- Light-emitting layer Z Insulation layer / cathode with thickness of 2 nm or less
- the light emitting layer is formed from a solution using the polymer light emitting material solution composition of the present invention
- the same method can be applied to the case where is mixed, which is very advantageous in production.
- the optimum value of the thickness of the light-emitting layer varies depending on the material used, and may be selected so that the driving voltage and the light-emitting efficiency have appropriate values, for example, from 1 nm to 1 xm. It is preferably 2 nm to 500 nm, more preferably 5 nm to 200 nm.
- the light-emitting layer may contain a light-emitting material other than the polymer light-emitting material. It may be laminated with a light emitting layer including a body.
- the luminescent material known materials can be used.
- low molecular compounds include naphthylene derivatives, anthracene or derivatives thereof, perylene or derivatives thereof, polymethine, xanthene, coumarin, and cyanine dyes, metal complexes of 8-hydroxyquinoline or derivatives thereof, Aromatic amine, tetraphenylcyclopentene or a derivative thereof, or tetraphenylbutadiene or a derivative thereof can be used.
- JP-A-57-51781 and JP-A-59-194393 can be used.
- the hole transporting material used includes polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, and an aromatic amine in a side chain or a main chain.
- JP-A-63-70257, JP-A-63-175860, JP-A-2-135359, JP-A-135361, JP-A-209988, Examples described in JP-A-3-37992 and JP-A-3-152218 are exemplified.
- a hole transport material used for the hole transport layer polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, a polysiloxane derivative having an aromatic amine compound group in a side chain or a main chain, and polyaniline Or that Derivatives, polythiophene or its derivatives, poly (p-phenylenevinylene)
- a derivative thereof, or a polymer hole transporting material such as poly (2,5-chenylenevinylene) or a derivative thereof, and more preferably polypinylcarbazole or a derivative thereof, polysilane or a derivative thereof, a side chain or a main chain.
- a polysiloxane derivative having an aromatic amine it is preferable to use the material by dispersing it in a polymer binder.
- Polyvinylcarbazole or a derivative thereof can be obtained, for example, from a pinyl monomer by force polymerization or radical polymerization.
- siloxane skeleton structure has little hole-transport property
- those having the structure of the above-described low-molecular-weight hole-transport material in a side chain or a main chain are preferably used as the polysiloxane or a derivative thereof.
- those having a hole transporting aromatic amine in the side chain or main chain are exemplified.
- the method of forming the hole transport layer There is no limitation on the method of forming the hole transport layer.
- a method of forming a film from a mixed solution with a polymer binder is exemplified.
- a method of forming a film from a solution is exemplified.
- the solvent used for film formation from a solution is not particularly limited as long as it dissolves the hole transport material.
- the solvent include chlorinated solvents such as chloroform, methylene chloride, and dichloroethane; ether solvents such as tetrahydrofuran; aromatic hydrocarbon solvents such as toluene and xylene; and ketone solvents such as acetone and methyl ethyl ketone.
- ester solvents such as ethyl acetate, butyl acetate and ethyl cellosolve acetate.
- Examples of the method for forming a film from a solution include spin coating from a solution, casting, microgravure coating, gravure coating, bar coating, roll coating, wire bar coating, dip coating, and spraying. Coating method, screen Coating methods such as TO printing, flexographic printing, offset printing, and inkjet printing can be used.
- polymer binder to be mixed a polymer binder that does not extremely inhibit charge transport is preferable, and a polymer binder that does not strongly absorb visible light is preferably used.
- the polymer binder include polyacrylonitrile, polyacrylate, polymethylacrylate, polymethylmethacrylate, polystyrene, polyvinyl chloride, polysiloxane, and the like.
- the optimal value of the thickness of the hole transport layer varies depending on the material used, and the thickness may be selected so that the driving voltage and the luminous efficiency are at appropriate values, but at least a thickness that does not cause pinholes is necessary. If the thickness is too large, the driving voltage of the device becomes high, which is not preferable. Accordingly, the thickness of the hole transport layer is, for example, 1 nm to 1 m, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- the polymer LED of the present invention has an electron transporting layer
- known electron transporting materials can be used, such as oxadiazole derivative, anthraquinodimethane or its derivative, benzoquinone or its derivative, naphthoquinone or its derivative.
- Derivative, anthraquinone or its derivative, tetracyanoanthraquinodimethane or its derivative, fluorenone derivative, diphenyldicyanoethylene or its derivative, diphenoquinone derivative, or metal complex of 8-hydroxyquinoline or its derivative, polyquinoline or Derivatives thereof, polyquinoxaline or a derivative thereof, polyfluorene or a derivative thereof and the like are exemplified.
- oxadiazole derivatives benzoquinone or its derivatives, anthraquinone or its derivatives, or metal complexes of 8-hydroxyquinoline or its derivatives, polyquinoline or its derivatives, and polyquinoxaline Or a derivative thereof, polyfluorene or a derivative thereof is preferable, and 2- (4-biphenyl) -15- (4-t-butylphenyl) —1,3,4-oxadiazol, benzoquinone, anthraquinone, Tris (8-quinolinol) aluminum and polyquinoline are more preferred.
- the method for forming the electron transport layer there is no particular limitation on the method for forming the electron transport layer, but for low-molecular-weight electron transport materials, vacuum evaporation from powder or film formation from a solution or molten state is used. Alternatively, a method of forming a film from a molten state is exemplified. When forming a film from a solution or a molten state, a polymer binder may be used in combination.
- the solvent used for film formation from a solution is not particularly limited as long as it dissolves the electron transporting material and Z or a polymer binder.
- the solvent include chlorinated solvents such as chloroform, methylene chloride, and dichloroethane; ether solvents such as tetrahydrofuran; aromatic hydrocarbon solvents such as toluene and xylene; and ketones such as acetone and methyl ketone.
- the solvent include ester solvents such as ethyl acetate, butyl acetate and ethyl cellosolve acetate.
- Coating methods such as spray coating, screen printing, flexographic printing, offset printing, and inkjet printing can be used.
- polymer binder to be mixed those that do not extremely inhibit charge transport are preferable, and those that do not strongly absorb visible light are preferably used.
- the polymer binder include poly (N-pinylcarbazole), polyaniline or a derivative thereof, polythiophene or a derivative thereof, poly (p-phenylenevinylene) or a derivative thereof, and poly (2,5-chenylenevinylene). ) Or its derivatives, polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polyvinyl chloride, or polysiloxane.
- the optimum value of the thickness of the electron transporting layer differs depending on the material used, and may be selected so that the driving voltage and the luminous efficiency are appropriate. However, at least a thickness that does not cause pinholes is necessary. Yes, too thick is not desirable because the driving voltage of the device is high. Therefore, the film thickness of the electron transport layer is, for example, 1 nm to 1 m, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- the substrate on which the polymer LED of the present invention is formed is not limited as long as it does not change when an electrode is formed and an organic layer is formed, and examples thereof include glass, plastic, polymer films, and silicon substrates. You. In the case of an opaque substrate, the opposite electrode is preferably transparent or translucent.
- the electrodes including the anode and the cathode is transparent or translucent, and the anode side is transparent or translucent.
- a conductive metal oxide film, a translucent metal thin film, or the like is used as a material for the anode.
- Examples of the manufacturing method include a vacuum evaporation method, a sputtering method, an ion plating method, and a plating method.
- An organic transparent conductive film such as polyaniline or a derivative thereof, polythiophene or a derivative thereof may be used as the anode.
- the thickness of the anode can be appropriately selected in consideration of light transmittance and electric conductivity, and is, for example, 10 nm to; L 0 m, and preferably 20 nm to 1 m. Yes, and more preferably 50 nm to 500 nm.
- a layer made of a phthalocyanine derivative, a conductive polymer, carbon, or the like, or an average film thickness of 2 nm or less made of a metal oxide, a metal fluoride, an organic insulating material, etc., on the anode to facilitate charge injection. May be provided.
- a material having a small work function is used.
- metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, scandium, vanadium, zinc, yttrium, indium, cerium, samarium, europium, terbium, ytterbium, And alloys of two or more of them, or alloys of one or more of them with one or more of gold, silver, platinum, copper, manganese, titanium, cobalt, nickel, tungsten, tin, and graphite
- a graphite interlayer compound or the like is used.
- Alloys include magnesium-silver alloy, magnesium-indium alloy, magnesium-aluminum alloy, indium-silver alloy, lithium-aluminum alloy, lithium-magnesium alloy, lithium-indium alloy, calcium-aluminum alloy, etc.
- Can be The cathode may have a laminated structure of two or more layers. The thickness of the cathode can be appropriately selected in consideration of electric conductivity and durability, and is, for example, 10 nm to 10, preferably 20 nm to 1 m, and more preferably It is 50 nm to 500 nm.
- a vacuum evaporation method, a sputtering method, a lamination method of thermocompression bonding a metal thin film, and the like are used as a method for producing the cathode.
- a layer made of a conductive polymer or a layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like having an average thickness of 2 nm or less may be provided between the cathode and the organic material layer.
- a protective layer for protecting the polymer LED may be attached. In order to use the polymer LED stably for a long period of time, it is preferable to attach a protective layer and / or a protective force par to protect the element from the outside.
- the protective layer a polymer compound, a metal oxide, a metal fluoride, a metal boride and the like can be used.
- the protective cover a glass plate, a plastic plate whose surface has been subjected to a low water permeability treatment, or the like can be used, and the cover is adhered to the element substrate with a heat effect resin or a photocurable resin and hermetically sealed. The method is preferably used. If a space is maintained using a spacer, it is easy to prevent the element from being damaged.
- a device manufactured by performing a heat treatment at a temperature of 50 or more when or after forming the light emitting layer is preferable from the viewpoint of life.
- the conditions of the heat treatment are usually conditions under which the onium salt is decomposed by the heat treatment.
- the temperature of the heat treatment is 5 O: or more, and is preferably in the range of 50 ° C. (to 300 ° C.). It is usually about 1 second to 24 hours.
- the heat treatment can be performed using, for example, a hot plate, an oven, an infrared lamp, or the like. Further, the heat treatment may be performed under reduced pressure.
- the heat treatment is preferably performed after the formation of the light emitting layer, and more preferably immediately after the formation of the light emitting layer.
- the device of the present invention may be manufactured by irradiating radiation during or after forming the light emitting layer.
- the radiation include ultraviolet rays, electron beams, and X-rays, and ultraviolet rays are preferable.
- the polymer LED of the present invention can be used as a planar light source, a segment display, a dot matrix display, a backlight of a liquid crystal display, and the like.
- a planar anode and a planar cathode may be arranged so as to overlap.
- a method in which a mask having a patterned window provided on the surface of the planar light emitting element is provided.
- There are a method of emitting light a method of forming either the anode or the cathode, or both electrodes in a pattern.
- both the anode and the cathode may be formed in a stripe shape and arranged so as to be orthogonal to each other.
- a partial color display and a multicolor display can be achieved by a method in which a plurality of types of polymer luminescent materials having different emission colors are separately applied, or a method using a color filter or a luminescence conversion filter.
- Dot matrix elements can be driven passively Alternatively, active driving may be performed in combination with a TFT or the like. These display elements can be used as display devices for computers, televisions, mobile terminals, mobile phones, force navigation, and view finders for video talents.
- planar light emitting element is a self-luminous thin type, and can be suitably used as a planar light source for backlight of a liquid crystal display device or a planar illumination light source.
- a flexible substrate if a flexible substrate is used, it can be used as a curved light source or display device.
- the number average molecular weight in terms of polystyrene was determined by gel permeation chromatography (GPC) using chloroform or tetrahydrofuran as a solvent.
- 2,7-dibromo-9,9-dioctylfluorene (26 g, 0.047mo1), 2,7-dibromo-9,9-diisopentylfluorene (5.6 g, 0.012mo1) And 2,2, -bipyridyl (22 g, 0.14 lmo 1) were dissolved in dehydrated tetrahydrofuran (160 OmL), and the system was purged with nitrogen by bubbling with nitrogen. Under a nitrogen atmosphere, add bis (1,5-cyclooctadiene) nickel (0) ⁇ N i (COD) 2 ⁇ (40 g, 0.15mo 1) to this solution and raise the temperature to 60 ° C.
- the reaction solution was added to 50 Oml of water, and the deposited precipitate was filtered. After washing twice with 25 Oml of water, 34.2 g of a white solid was obtained.
- polymer light-emitting substance 2 The yield of the obtained copolymer (hereinafter, referred to as polymer light-emitting substance 2) was 5.5 g.
- the temperature was raised to 100 ° C, and the reaction was performed for 25 hours. After cooling to room temperature, the organic layer was extracted with toluene, dried over sodium sulfate, and the solvent was distilled off.
- a 300 ml three-necked flask was charged with 8.00 g (34.4 mmo 1) of compound P and 46 ml of dehydrated THF, and cooled to -78 ° C. Subsequently, 52 ml of n-octylmagnesium bromide (1.0mo 1Z1 THF solution) was added dropwise over 30 minutes. After the completion of the dropwise addition, the temperature was raised to 0 ° C., and the mixture was stirred for 1 hour. The reaction was terminated by adding 20 ml of 1N hydrochloric acid in an ice bath, and the organic layer was extracted with ethyl acetate and dried over sodium sulfate.
- the reaction solution was cooled to room temperature (about 25 ° C), dropped into a mixed solution of 25% aqueous ammonia 1 OmLZ methanol about 10 OmL / ion exchanged water about 10 OmL, stirred for 1 hour, and precipitated.
- the precipitate was filtered and dried under reduced pressure for 3 hours, then dissolved in 5 OmL of toluene and filtered, and the filtrate was purified through an alumina column, and about 5 OmL of 4% aqueous ammonia was added, followed by stirring for 2 hours.
- the aqueous layer was removed.
- About 5 OmL of ion-exchanged water was added to the organic layer, and the mixture was stirred for 1 hour, and then the aqueous layer was removed.
- the ether layer was transferred to a 20-Om 1 Erlenmeyer flask, anhydrous sodium sulfate was added for dehydration, and the anhydrous sodium sulfate was filtered off.
- the ether layer was concentrated overnight at room temperature under an evaporator, and then dried at 70 to 75 ° C with a vacuum pump to constant weight. 1. I got 198 compounds.
- a 5-Om 14-necked flask was purged with nitrogen, and charged with 0.309 g of poly (1-n-butyl-4-vinylpyridinium trifluoromethanesulfonimide), 1.088 g of compound A, and 3 Om1 of dimethylformamide. After attaching a stir bar, a thermometer, and a capacitor, the reaction was carried out at 21 to 23 ° C for 16 hours. After the reaction, the contents of the flask were transferred to a 200-ml separating funnel, charged with 9 Oml of toluene, and DMF was extracted with 5 Om1 of ion-exchanged water. The toluene layer was washed three times with 5 Om1 of water.
- a 200-m 14-necked flask was purged with nitrogen, and charged with 3.11 g of ⁇ 2 [Ni (CN) 4], 25.5 g of tris (pentafluorophenyl) poran, and 100 m 1 of Jetjylether. After attaching a stir bar, thermometer, and condenser, it was reacted at 21-23 ° C for 16 hours. The precipitated crystals were filtered and the cake was washed with 100 ml of ethyl acetate. The remaining K 2 [Ni (CN) 4] on the filter was treated with 5% sodium hypochlorite.
- the filtrate was transferred to a 500 ml separating funnel and washed three times with 100 ml of ion-exchanged water.
- the organic layer was transferred to a 500 ml Erlenmeyer flask, and anhydrous sodium sulfate was added for dehydration. Then, the anhydrous sodium sulfate was separated by filtration.
- the solvent was concentrated in an evaporator to obtain 31.4 g of a crude cake.
- To the crude cake was added 60 ml of n-hexane, 12 ml of n-hexane, and the mixture was stirred at room temperature for 1 hour and filtered, and the cake was washed with 5 ml of n-hexane.
- the mixture was dried at 70 to 75 with a vacuum dryer until the weight became constant. 24.4 g of the potassium salt were obtained.
- Synthesis Example 20 (Synthesis of Compound G) A 200-m 14-necked flask was purged with nitrogen, charged with 3.0 g of potassium salt, 10 Oml of getyl ether, and 2 Oml of ion-exchanged water, and fitted with a stirring bar, a thermometer, and a condenser. 21 15 g of 1% hydrochloric acid was added dropwise over 10 minutes while stirring at 1 to 23 ° C, and the mixture was stirred for 1 hour. The contents of the flask were transferred to a 20 Oml separatory funnel and the aqueous layer was separated. Next, the ether layer was washed three times with ion-exchanged water.
- the ether layer was transferred to a 20-Om 1 Erlenmeyer flask, and anhydrous sodium sulfate was added for dehydration. Then, anhydrous sodium sulfate was filtered off. Evapore The ether layer was concentrated overnight. Add 5 Om 1 of toluene and 0.5 hours at 60-65 ° C The mixture was stirred and washed, cooled to room temperature, and filtered. After this washing operation was performed three times, drying was performed at 80 to 85 ° C by a vacuum pump until the weight became constant. 1.15 g of compound H were obtained.
- a 50-m 14-necked flask was purged with nitrogen, and charged with 1,8-diazabicyclo [5,4,0] decane 7-phen 27.4 g and n-octyl bromide 11.6 g. After attaching a stir bar, a thermometer, and a condenser, the mixture was reacted at 110 to 115 ° C for 5.5 hours. After cooling to 80 ° C, toluene 5 Om1 and hexane 15 Oml were charged and cooled to 5 ° C. The mixture was stirred at 5 ° C or less for 1 hour, allowed to stand at the same temperature for 1 hour, and the supernatant was removed by decantation.
- the flask was charged with 5 Oml of toluene and 15 Om1 of hexane, stirred at 60 to 65 ° C for 1 hour, and then cooled to 5 ° C.
- the mixture was stirred at 5 ° C or lower for 1 hour, allowed to stand at the same temperature for 1 hour, and the supernatant was removed by decantation. After performing this operation again, the remaining solvent was distilled off in an evaporator. Next, the mixture was dried at 80 to 85 ° C with a vacuum pump until a constant weight was obtained, to obtain 19.5 g of a quaternary salt.
- a 200-ml four-necked flask was purged with nitrogen, and charged with 0.590 g of a quaternary salt, 1.240 of compound A, 20 ml of ion exchange, and 6 Oml of Jetil ether. After attaching a stir bar, thermometer, and condenser, the reaction was carried out at 21-23 ° C for 24 hours. After the reaction, the contents of the flask were transferred to a 20 Oml separating funnel, the aqueous layer was separated, and the ether layer was washed three times with 4 Om1 of ion-exchanged water.
- the ether layer was transferred to a 20-Om 1 Erlenmeyer flask, and anhydrous sodium sulfate was added for dehydration. The anhydrous sodium sulfate was filtered off. The ether layer was concentrated overnight. Further drying was carried out at 80 to 85 ° C until a constant weight was obtained with a vacuum pump. 1.53 g of compound I were obtained.
- the organic layer is deionized water 3 Oml Washed three times.
- the organic layer was transferred to a 200 ml Erlenmeyer flask, dehydrated by adding anhydrous sodium sulfate, and then anhydrous sodium sulfate was separated by filtration.
- the organic layer was concentrated at the evaporator evening. Further drying was carried out at 80 to 85 ° C. with a vacuum pump until the weight became constant. 1. 18 g of compound K were obtained.
- the ether layer was transferred to a 20-Oml Erlenmeyer flask, and anhydrous sodium sulfate was added thereto for dehydration. Then, anhydrous sodium sulfate was separated by filtration. The ether layer was concentrated at the epapore evening. Further drying was performed at 80 to 85 ° C. using a vacuum pump until the weight became constant.
- the organic layer was washed three times with 3 Oml of ion-exchanged water.
- the organic layer was transferred to a 20 Oml Erlenmeyer flask, dehydrated by adding anhydrous sodium sulfate, and then the anhydrous sodium sulfate was separated by filtration.
- the organic layer was concentrated at the evaporator evening. Further, the mixture was dried at 80 to 85 with a vacuum pump until the weight became constant. 1. 24 g of compound M was obtained.
- the 200 ml four-necked flask was purged with nitrogen, and charged with 1.089 g of compound A, 20 ml of ion-exchanged water, and 50 ml of getyl ether. After attaching a stirrer, a thermometer, and a capacitor, 11 g of 1% hydrochloric acid was added dropwise over 10 minutes while stirring at 21 to 23 ° C. After stirring for 2 hours, the contents of the flask were transferred to a 200 ml separating funnel, and the aqueous layer was separated. Next, the ether layer was washed three times with 30 ml of ion-exchanged water.
- the ether layer was transferred to a 20-Om triangular flask, and anhydrous sodium sulfate was added thereto for dehydration. Then, anhydrous sodium sulfate was filtered off. The organic layer was concentrated at the evaporator evening. Further, it was dried at 80 to 85 with a vacuum pump until the weight became constant. 1.06 g of compound N was obtained.
- a 25:75 (weight ratio) mixture of polymer light-emitting body 2 and polymer light-emitting body 1 was mixed in a mixed solvent of ethyl ethyl acetate / 80/20 (weight ratio) at 0.9 wt%, and an ion pair was used as an additive.
- the components were mixed and dissolved in the amounts shown in Table 1. Thereafter, the solution was filtered through a 2-micron diameter Teflon (registered trademark) filter to prepare a coating solution.
- the ion pair used in the synthesis example was used as the ion pair.
- the amount of the ion pair added was expressed in parts by weight based on 100 parts by weight of the entire polymer light-emitting material.
- a glass substrate on which an ITO film with a thickness of 150 nm is applied by the sputtering method is spin-coated with a solution of poly (ethylenedioxythiophene) / polystyrenesulfonic acid (Payer, Baytron). Deposited in nm thickness, hot The plate was dried at 200 ° C. for 10 minutes. Next, a film having a thickness of about 85 nm was formed by spin coating at a rotation speed of 100 O rpm using the prepared polymer light emitting material coating solution.
- the converted life is equivalent to the life when driven at an initial luminance of 2000 cd / m 2, and assumes a relationship of half-life ⁇ (initial luminance) -1 .
- Organic EL materials and displays published by CMC (2001), 107 pages.
- Evaluation made using polymer light emitting solution composition not containing ion pair Evaluation example made using polymer light emitting solution composition containing ion pair as compared with device of Comparative Example 1 Examples 1-2 In the device of the above, a remarkable improvement in the life was observed.
- the ion pairs were mixed and dissolved in the amounts shown in Table 2. Thereafter, the solution was filtered through a 0.2 micron diameter Teflon (registered trademark) filter to prepare a coating solution.
- the ion pair used in the synthesis example was used as the ion pair.
- Polymer ion emission The weight was expressed in parts by weight based on 100 parts by weight of the whole body.
- a glass substrate coated with an IT film with a thickness of 150 nm by the sputtering method is spin-coated with a solution of poly (ethylenedioxythiophene) and polystyrenesulfonic acid (Baytron, Bay tron). Films were formed to a thickness of nm and dried on a hot plate at 200 ° C for 10 minutes. Next, a film having a thickness of about 85 nm was formed by spin coating at a rotation speed of 100 Onm using the prepared polymer light emitting material coating solution.
- lithium fluoride was 1 nm as a cathode buffer layer
- calcium was 5 nm as a cathode
- aluminum was evaporated 10 nm thick
- a polymer LED was fabricated.
- the degree of vacuum in vapor deposition were all 1 ⁇ 9X 10- 5 To rr.
- EL light emission from the polymer light emitting body was obtained.
- Table 1 shows the characteristics of the obtained device. In the life test, the luminance was measured while driving the device having a light emitting portion of 2 mm ⁇ 2 mm (area 4 mm 2 ) at a constant current of 10 mA.
- 2,7-dibromo-9,9-dioctylfluorene (26 g, 0.047mo1), 2,7-dibuto-9,9-diisopentylfluorene (5.6 g, 0.012mo1) And 2,2'-Bipyridyl (22 g, 0.14 lmo 1) were dissolved in dehydrated tetrahydrofuran (160 OmL), and the system was purged with nitrogen by bubbling with nitrogen. Under a nitrogen atmosphere, add bis (1,5-cyclooctadiene) nickel (0) ⁇ N i (COD) 2 ⁇ (40 g, 0.15mo 1) to this solution and raise the temperature to 60 ° C. Allowed to react for hours.
- this reaction solution was cooled to room temperature (about 25 ° C), added dropwise to a mixed solution of 25% ammonia water (20 OmL), methanol (120 OmL), and ion-exchanged water (120 OmL), and stirred for 30 minutes. Was filtered and air-dried. Thereafter, the resultant was dissolved in 110 OmL of toluene and filtered, and the filtrate was dropped into 330 OmL of methanol and stirred for 30 minutes. The deposited precipitate was filtered, washed with 100 mL of methanol, and dried under reduced pressure for 5 hours. The yield of the resulting polymer light-emitting body 5 was 20 g.
- the polymer light-emitting substance 5 was mixed and dissolved in toluene in an amount of 1.5 wt. Thereafter, the solution was filtered through a Teflon (registered trademark) filter having a diameter of 0.2 ⁇ m to prepare a coating solution.
- Rhodosil photopolymerization initiator # -2074 manufactured by Rhodia represented by the following formula was used as the onium salt. The amount of the sodium salt added was expressed in parts by weight based on 100 parts by weight of the polymer light-emitting material.
- a glass substrate on which an ITO film with a thickness of 150 nm is attached by the sputter method is spin-coated with a solution of poly (ethylenedioxythiophene) / polystyrenesulfonic acid (Payer, Baytron). Films were formed to a thickness of 50 nm and dried on a hot plate at 200 ° C for 10 minutes. Next, a film with a thickness of about 85 nm was formed by spin-coating at 140 Orpm using the adjusted polymer light-emitting material coating solution. did. When performing UV exposure, exposure was then performed for 10 seconds using a high-pressure mercury lamp with an illuminance of 50 W / cm 2 measured by i-line (365 nm) in a nitrogen atmosphere.
- a high-pressure mercury lamp with an illuminance of 50 W / cm 2 measured by i-line (365 nm) in a nitrogen atmosphere.
- lithium fluoride is deposited as a cathode buffer layer, 1 nm, calcium as a cathode, 5 nm, and aluminum, 100 nm, and polymer LED is deposited.
- the degree of vacuum in vapor deposition were all 1 ⁇ 9 X 10_ 5 To rr.
- EL light emission from the polymer light emitting device was obtained. Table 3 shows the characteristics of the obtained device. In the life test, the brightness was measured while driving the device with a light emitting portion of 2 mm ⁇ 2 mm (area 4 mm 2 ) at a constant current of 1 mA.
- TPSTB triphenylsulfonium tetrakis (pentafluorophenyl) porate salt
- I9 FN R 300 MHz I DMS0-d 6 ): ⁇ (ppm)-132.86 (d, 2F),-161.75 (dd, 1 F),-166.41 (dd, 2F).
- the polymer light-emitting body 5 was mixed and dissolved in toluene in an amount of 1.5 wt%, and further, a metal salt or an onium salt as an additive in the amount shown in Table 4. Thereafter, the solution was filtered through a 0.2 micron diameter Teflon (registered trademark) filter to prepare a coating solution.
- a metal salt or an onium salt those synthesized in Synthesis Examples and those purchased from the following reagents were used.
- the amounts of the metal salt and the onium salt added were expressed in parts by weight with respect to 100 parts by weight of the polymer light-emitting material.
- L i B Lithium tetrakis (Penyu fluorophenyl) porate ethyl ester complex (Tokyo Kasei)
- a solution of poly (ethylenedioxythiophene) Z polystyrenesulfonic acid (Baytron, Baytron) is spin-coated on a glass substrate. Films were formed to a thickness of nm and dried on a hot plate at 20 Ot for 10 minutes. Next, a film having a thickness of about 85 nm was formed by spin coating at a rotation speed of 140 Orpm using the prepared polymer light emitting material coating solution.
- UV exposure was performed, UV exposure was then performed for 10 seconds using a high-pressure mercury lamp with an illuminance of 50 W / cm 2 measured by i-line (365MI) in a nitrogen atmosphere.
- i-line i-line
- lnm of lithium fluoride was used as a cathode buffer layer.
- 5 nm of calcium and then 100 nm of aluminum were deposited to produce a polymer LED.
- the degree of vacuum at the time of deposition were all 5 To r ⁇ ⁇ 1 ⁇ 9 X 10_ .
- EL light emission from the polymer light emitting device was obtained. Table 2 shows the characteristics of the obtained device.
- TTBPSTB tri (4-t-butylphenylsulfonium) tetrakis (pentafluorophenyl) phosphate salt
- a 200-m 14-necked flask was purged with nitrogen, and tri- (4-t-phenylphenylsulfonium) trifluoromethanesulfonate 0.581 g, lithium tetrakis (pentafluorophenyl) por-ethyl-ether complex 0.83 4 g 20 ml of deionized water and 60 ml of getyl ether were charged. After attaching a stir bar, thermometer and condenser, the reaction was carried out at 21-23 ° C for 16 hours. After the reaction, the contents of the flask were transferred to a 20 Oml separating funnel, and the aqueous layer was separated.
- the ether layer was washed three times with 3 Oml of ion-exchanged water.
- the ether layer was transferred to a 20-Om 1 Erlenmeyer flask, and anhydrous sodium sulfate was added for dehydration.
- the anhydrous sodium sulfate was filtered off.
- the ether layer was concentrated at room temperature on an evaporator, and then dried at 70 to 75 ° C with a vacuum pump to constant weight. 1.04 g of the compound (abbreviation: TTBPSTB) was obtained.
- the pairs were mixed and dissolved in the amounts indicated in Table 5. Thereafter, the solution was filtered through a 0.2 micron diameter Teflon (registered trademark) filter to prepare a coating solution.
- the ion pair used in the synthesis example was used as the ion pair.
- the amount of the ion pair added was expressed in parts by weight based on 100 parts by weight of the entire polymer light-emitting material.
- a glass substrate on which an ITO film with a thickness of 150 nm is applied by the sputter method is spin-coated with a solution of poly (ethylenedioxythiophene) / polystyrene sulfonic acid (Baytron, Baytron). Films were formed to a thickness of nm and dried on a hot plate at 200 ° C for 10 minutes. Next, a film having a thickness of about 85 nm was formed by spin coating at a rotation speed of 100 Orpm using the prepared polymer light emitting material coating solution.
- a polymer LED using the polymer light emitting composition of the present invention can be used as a curved or flat light source for backlight or illumination of a liquid crystal display, a segment type display element, and a dot matrix flat. It can be preferably used for devices such as panel displays.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Electroluminescent Light Sources (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Description
Claims
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KR1020057021501A KR101128206B1 (ko) | 2003-05-12 | 2004-05-11 | 고분자 발광체 조성물 |
US10/556,463 US20070020479A1 (en) | 2003-05-12 | 2004-05-11 | Luminescent-polymer composition |
DE112004000832T DE112004000832T5 (de) | 2003-05-12 | 2004-05-11 | Lichtemittierende Polymerzusammensetzung |
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JP2004-104335 | 2004-03-31 | ||
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US7910025B2 (en) * | 2004-10-15 | 2011-03-22 | Sumitomo Chemical Co., Ltd. | Solution composition and polymer light-emitting device |
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Also Published As
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KR20060006836A (ko) | 2006-01-19 |
US20070020479A1 (en) | 2007-01-25 |
DE112004000832T5 (de) | 2006-03-23 |
KR101128206B1 (ko) | 2012-03-23 |
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