JP6185928B2 - Led用の水ガラス中の蛍光体 - Google Patents
Led用の水ガラス中の蛍光体 Download PDFInfo
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- JP6185928B2 JP6185928B2 JP2014546688A JP2014546688A JP6185928B2 JP 6185928 B2 JP6185928 B2 JP 6185928B2 JP 2014546688 A JP2014546688 A JP 2014546688A JP 2014546688 A JP2014546688 A JP 2014546688A JP 6185928 B2 JP6185928 B2 JP 6185928B2
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims description 59
- 235000019353 potassium silicate Nutrition 0.000 title claims description 55
- 239000000463 material Substances 0.000 claims description 121
- 238000006243 chemical reaction Methods 0.000 claims description 90
- 239000011159 matrix material Substances 0.000 claims description 47
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 22
- 238000005286 illumination Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 239000012783 reinforcing fiber Substances 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 6
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 229910052693 Europium Inorganic materials 0.000 claims description 4
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000002223 garnet Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 37
- 239000011248 coating agent Substances 0.000 description 33
- 239000011734 sodium Substances 0.000 description 17
- 235000012431 wafers Nutrition 0.000 description 14
- 229920001296 polysiloxane Polymers 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 6
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000002096 quantum dot Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000005340 laminated glass Substances 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- -1 lutetium aluminum Chemical compound 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- YNXRTZDUPOFFKZ-UHFFFAOYSA-N [In].[Ag]=S Chemical compound [In].[Ag]=S YNXRTZDUPOFFKZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- AQCDIIAORKRFCD-UHFFFAOYSA-N cadmium selenide Chemical compound [Cd]=[Se] AQCDIIAORKRFCD-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- LCUOIYYHNRBAFS-UHFFFAOYSA-N copper;sulfanylideneindium Chemical compound [Cu].[In]=S LCUOIYYHNRBAFS-UHFFFAOYSA-N 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012667 polymer degradation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- RLQWHDODQVOVKU-UHFFFAOYSA-N tetrapotassium;silicate Chemical compound [K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])[O-] RLQWHDODQVOVKU-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C14/00—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
- C03C14/004—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in the form of particles or flakes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
- C09K11/592—Chalcogenides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2214/00—Nature of the non-vitreous component
- C03C2214/04—Particles; Flakes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0091—Scattering means in or on the semiconductor body or semiconductor body package
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Description
ケイ酸塩溶液とルミネセンス材料粒子が、均一な分散液が得られるまで混合される。次いで、その分散液が、LEDを覆うガラスプレートの上に塗布され得る(離隔塗布)。また、分散液は、LEDの表面上(即ちダイ上)に直接塗布され得て、それにより、ガラスプレートの必要をなくす。コーティングは、例えばスピンコーティング又はスプレーコーティングによって行われ得る。しかし、ルミネセンス材料は高価であるので、損失の少ないコーティングが好ましい。スクリーン印刷又は浸漬コーティングが、小さい損失をもたらす。また、所望の変換特性を得るために、堆積プロセス中、コーティングの質が監視されることが好ましい。
ダイの光出力を測定する前に、水ガラスの屈折率が測定された。水ガラスの液滴をポリエチレン箔上で拡散させることによって、澄明な水ガラスコーティングが調製された。室温乾燥後、箔は除去され、水ガラスシートが、オーブン内で50℃、90℃、及び120℃の温度で更に乾燥された。アッベ屈折計を使用して、様々な波長に関して屈折率が測定された。水ガラスの屈折率は、軟質ドームシリコーン材料の屈折率とほぼ一致するようであった。これは、水ガラスとドームとの界面が光をほとんどダイに反射し返さないことを意味するので、好ましい結果である。
基板にダイをはんだ付けし、シリコーンドームを成形した後、光出力が測定された。これらの結果は、澄明な水ガラスが、参照試料に比べて光出力を大幅には変えないことを示した。これは、ドームと水ガラスとの同様の屈折率により、尤もらしく思われる。有孔ルミネセンス材料を有するダイは、ルミネセンス材料を有さないダイの約56%の光を生成する。
Claims (11)
- 光源と、光変換層とを備える照明ユニットであって、
前記光源が、光源光を提供し、発光ダイオード(LED)を備え、前記光変換層が、粒子状ルミネセンス材料を含有するケイ酸アルカリマトリックスを備え、前記光変換層が、前記光源光の少なくとも一部をルミネセンス材料光に変換し、
前記光変換層が、前記光源から離れて構成され、
前記光変換層が、透過性の支持体の上流に構成され、且つ
前記支持体が、強化繊維の布地を有する表面を持つ、
照明ユニット。 - 前記ケイ酸アルカリマトリックスが、SiO2*M2Oを含み、Mが、Li、Na、及びKからなる群から選択される種を含み、SiO2とM2Oとのモル比が、2:1〜4:1の範囲内である請求項1に記載の照明ユニット。
- 前記ケイ酸アルカリマトリックスが、M2SiO3を含み、Mが、Li、Na、及びKからなる群から選択される種を含む請求項1又は2に記載の照明ユニット。
- 前記Mが、少なくともNaを含む請求項2又は3に記載の照明ユニット。
- 前記光源が、青色光源光を発生し、前記光源と、前記光変換層とが、白色照明ユニット光を提供する請求項1乃至4のいずれか一項に記載の照明ユニット。
- 前記粒子状ルミネセンス材料が、3価セリウムを含有するガーネット、2価ユーロピウムを含有する窒化物、3価セリウムを含有する酸窒化物、及び2価ユーロピウムを含有する酸窒化物からなる群から選択される1つ又は複数のルミネセンス材料を含む請求項1乃至5のいずれか一項に記載の照明ユニット。
- 前記光変換層が、少なくとも10wt%のケイ酸アルカリを含み、前記光変換層内の前記ケイ酸アルカリと前記ルミネセンス材料との重量比が、20:1〜1:20の範囲内である請求項1乃至6のいずれか一項に記載の照明ユニット。
- 前記光変換層が、ガラス繊維を更に含む請求項1乃至7のいずれか一項に記載の照明ユニット。
- 基板に光変換層を提供するための方法であって、前記光変換層が、粒子を備えるルミネセンス材料を含有するケイ酸アルカリマトリックスを備え、前記方法が、粒子状ルミネセンス材料と、ケイ酸アルカリマトリックス前駆体液体と、任意選択的に1つ又は複数の他の成分とを混合するステップと、任意選択的に1つ又は複数の更なるプロセス段階の後に、そのようにして得られた混合物を前記基板の表面に塗布するステップと、そのようにして形成された層を乾燥させて、前記基板の前記表面に前記光変換層を提供するステップとを含み、前記基板が、透過性の支持体を備え、前記支持体が、強化繊維の布地を有する表面を持つ、方法。
- 二酸化ケイ素と酸化アルカリとのモル重量比が、2:1〜4:1の範囲内である請求項9に記載の方法。
- 前記ケイ酸アルカリマトリックス前駆体液体が、液体水ガラスを含む請求項9又は10に記載の方法。
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