WO2012023177A1 - Élément électroluminescent organique - Google Patents

Élément électroluminescent organique Download PDF

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Publication number
WO2012023177A1
WO2012023177A1 PCT/JP2010/063875 JP2010063875W WO2012023177A1 WO 2012023177 A1 WO2012023177 A1 WO 2012023177A1 JP 2010063875 W JP2010063875 W JP 2010063875W WO 2012023177 A1 WO2012023177 A1 WO 2012023177A1
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WO
WIPO (PCT)
Prior art keywords
cathode
organic light
layer
emitting device
electron
Prior art date
Application number
PCT/JP2010/063875
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English (en)
Japanese (ja)
Inventor
崇人 小山田
Original Assignee
パイオニア株式会社
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Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2010/063875 priority Critical patent/WO2012023177A1/fr
Priority to JP2012529426A priority patent/JPWO2012023177A1/ja
Publication of WO2012023177A1 publication Critical patent/WO2012023177A1/fr

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/12Light sources with substantially two-dimensional radiating surfaces
    • H05B33/26Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14Carrier transporting layers
    • H10K50/16Electron transporting layers
    • H10K50/165Electron transporting layers comprising dopants
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/846Passivation; Containers; Encapsulations comprising getter material or desiccants

Definitions

  • film sealing which is a sealing technique for forming a moisture-proof and gas barrier sealing layer
  • the sealing principle of film sealing is to obtain sealing capability by covering the organic EL element substrate with a moisture-proof and gas barrier sealing layer, and by using a multilayer structure, further sealing performance is obtained. Can be increased.
  • moisture permeation occurs from point defects, and the non-light-emitting region of the element is expanded. Whether or not the circular non-luminous defect is enlarged by subsequent moisture permeability is determined by the presence or absence of a defect in the sealing layer and the size of the defective portion.
  • the organic light-emitting device of the present invention is an organic light-emitting device comprising a plurality of organic semiconductor layers including an organic light-emitting layer, which is disposed between an opposing anode and cathode, and the organic semiconductor layer has an electron transport property.
  • An n-type dopant-containing electron transport layer in which an electron-donating substance that is in contact with the cathode and can be alloyed with the cathode is mixed in a stoichiometric form, and the cathode and An electron injection assist layer is disposed between and in contact with the n-type dopant-containing electron transport layer.
  • an n-type dopant-containing electron transport layer in which an n-type dopant that is an electron donating substance is mixed in the electron transport layer is used to increase the electron transport efficiency and the electron injection efficiency, and the n-type dopant is hygroscopic. It absorbs moisture and oxygen that have entered from the outside. Furthermore, a metal (silver, gold, platinum, or an alloy thereof) that is not easily oxidized is used for the cathode. In general, when a metal species that is difficult to oxidize, that is, a metal species having a high work function (Au, Ag, Pt, etc.) is used, an increase in driving voltage is accompanied by a decrease in electron injection efficiency. It can be avoided by using it.
  • the main component of the n-type dopant-containing electron transport layer containing the electron donating substance may contain a substance having a work function or a HOMO level of 3.0 eV or less.
  • the organic EL device has an anode 2 / hole injection layer 3 / light emitting layer 5 / n-type dopant-containing electron transport layer 7 / electron injection assist layer 8 / cathode 9.
  • anode 2 / hole transport layer 4 / light emitting layer 5 / n-type dopant-containing electron transport layer 7 / electron injection assist layer 8 / cathode 9 / cathode As shown in FIG. 3, anode 2 / hole transport layer 4 / light emitting layer 5 / n-type dopant-containing electron transport layer 7 / electron injection assist layer 8 / cathode 9 / cathode As shown in FIG.
  • Organic semiconductor layer-- The organic semiconductor layer (the hole injection layer 3, the hole transport layer 4, the light emitting layer 5, the hole block layer 6 and the n-type dopant-containing electron transport layer 7) has a charge transport property (holes) constituting their main components. And / or an organic compound having electron mobility).
  • Examples of the organic compound having an electron transport property as a main component of the light emitting layer and the electron transport layer include polycyclic compounds such as p-terphenyl and quaterphenyl and derivatives thereof, naphthalene, tetracene, pyrene, coronene, chrysene, anthracene, Condensed polycyclic hydrocarbon compounds such as diphenylanthracene, naphthacene, phenanthrene and derivatives thereof, condensed heterocyclic compounds such as phenanthroline, bathophenanthroline, phenanthridine, acridine, quinoline, quinoxaline, phenazine and derivatives thereof, fluorescein, Perylene, phthaloperylene, naphthaloperylene, perinone, phthaloperinone, naphthaloperinone, diphenylbutadiene, tetraphenylbutadiene, oxadiazole, al
  • Liq, Csq, Naq, Kq Metal acetylacetonato (e.g. Li (acac), K (acac)), Metal dipivaloylmethanato (e.g. Lidpm, Kdpm, Nadpm) Mentioned as a dopant.
  • Metal acetylacetonato e.g. Li (acac), K (acac)
  • Metal dipivaloylmethanato e.g. Lidpm, Kdpm, Nadpm Mentioned as a dopant.
  • Example 3-1 On a transparent glass substrate on an anode made of 110 nm thick ITO, by vacuum deposition, 25 nm thick CuPc as a hole injection layer, 45 nm thick NPB as a hole transport layer, and 30 nm thick Alq3 as a light emitting layer. was deposited. Next, as an n-type dopant-containing electron transport layer, Cs 2 MoO 4 : NBphen with a thickness of 30 nm is co-deposited with 0.066 A / sec of Cs 2 MoO 4 and the co-deposition rate is 2 A / sec in total. A thin film having a Cs 2 MoO 4 concentration of 3.3% by volume was formed.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

L'invention concerne un élément électroluminescent organique formé d'une pluralité de couches semi-conductrices organiques, qui comprennent une couche électroluminescente organique stratifiée et placée entre une anode et une cathode qui se trouvent sur des côtés opposés. Les couches semi-conductrices organiques sont principalement formées d'un composé organique ayant des propriétés de transport d'électrons. Les couches semi-conductrices organiques comprennent en outre une couche de transport d'électrons contenant un agent dopant de type n dans lequel le matériau donneur d'électrons, qui est en contact avec la cathode et qui peut être allié avec la cathode, est mélangé sous une forme stœchiométrique. Il est prévu une couche d'aide à l'implantation d'électrons, laquelle est placée entre la cathode et la couche de transport d'électrons contenant l'agent dopant de type n et est en contact avec toutes les deux.
PCT/JP2010/063875 2010-08-17 2010-08-17 Élément électroluminescent organique WO2012023177A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2010/063875 WO2012023177A1 (fr) 2010-08-17 2010-08-17 Élément électroluminescent organique
JP2012529426A JPWO2012023177A1 (ja) 2010-08-17 2010-08-17 有機発光素子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/063875 WO2012023177A1 (fr) 2010-08-17 2010-08-17 Élément électroluminescent organique

Publications (1)

Publication Number Publication Date
WO2012023177A1 true WO2012023177A1 (fr) 2012-02-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/063875 WO2012023177A1 (fr) 2010-08-17 2010-08-17 Élément électroluminescent organique

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JP (1) JPWO2012023177A1 (fr)
WO (1) WO2012023177A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013171872A1 (fr) * 2012-05-17 2013-11-21 パイオニア株式会社 Panneau électroluminescent (el) organique et dispositif électroluminescent
WO2017033317A1 (fr) * 2015-08-26 2017-03-02 パイオニア株式会社 Dispositif électroluminescent
US9748509B2 (en) 2013-07-10 2017-08-29 Joled Inc. Organic EL element and organic EL display panel
US10734598B2 (en) 2017-11-30 2020-08-04 Lg Display Co., Ltd. Organic light-emitting element and organic light-emitting display device using the same
CN111969017A (zh) * 2020-08-21 2020-11-20 合肥维信诺科技有限公司 显示面板及其制备方法
CN113725376A (zh) * 2021-08-30 2021-11-30 合肥京东方卓印科技有限公司 有机电致发光器件、制作其的方法及显示面板

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0696858A (ja) * 1992-09-10 1994-04-08 Toppan Printing Co Ltd 有機薄膜el素子
JP2003092192A (ja) * 2001-09-18 2003-03-28 Matsushita Electric Ind Co Ltd 有機エレクトロルミネッセンス表示装置およびその製造方法
JP2006196271A (ja) * 2005-01-12 2006-07-27 Fuji Electric Holdings Co Ltd 有機el素子およびその製造方法
JP2009016332A (ja) * 2007-07-03 2009-01-22 Samsung Sdi Co Ltd 有機発光素子
WO2009107541A1 (fr) * 2008-02-25 2009-09-03 パイオニア株式会社 Élément électroluminescent organique
WO2010016101A1 (fr) * 2008-08-04 2010-02-11 パイオニア株式会社 Élément électroluminescent organique
JP2010150518A (ja) * 2008-11-20 2010-07-08 Sumitomo Chemical Co Ltd アミン系高分子化合物及びそれを用いた発光素子
JP2010174035A (ja) * 2007-05-18 2010-08-12 Semiconductor Energy Lab Co Ltd 有機金属錯体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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JP4731970B2 (ja) * 2004-04-07 2011-07-27 株式会社半導体エネルギー研究所 発光装置及びその作製方法
US7795806B2 (en) * 2005-05-20 2010-09-14 Lg Display Co., Ltd. Reduced reflectance display devices containing a thin-layer metal-organic mixed layer (MOML)
JP5208591B2 (ja) * 2007-06-28 2013-06-12 株式会社半導体エネルギー研究所 発光装置、及び照明装置
JP5267246B2 (ja) * 2008-03-26 2013-08-21 凸版印刷株式会社 有機エレクトロルミネッセンス素子及びその製造方法並びに有機エレクトロルミネッセンス表示装置
KR20090107882A (ko) * 2008-04-10 2009-10-14 삼성전자주식회사 고정층을 포함하는 경사 조성 봉지 박막 및 그의 제조방법
JP2010123439A (ja) * 2008-11-20 2010-06-03 Fujifilm Corp 有機電界発光素子
JP5156657B2 (ja) * 2009-01-27 2013-03-06 パナソニック株式会社 有機el発光装置
JP5120398B2 (ja) * 2010-03-04 2013-01-16 コニカミノルタホールディングス株式会社 有機エレクトロルミネッセンス素子及び表示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0696858A (ja) * 1992-09-10 1994-04-08 Toppan Printing Co Ltd 有機薄膜el素子
JP2003092192A (ja) * 2001-09-18 2003-03-28 Matsushita Electric Ind Co Ltd 有機エレクトロルミネッセンス表示装置およびその製造方法
JP2006196271A (ja) * 2005-01-12 2006-07-27 Fuji Electric Holdings Co Ltd 有機el素子およびその製造方法
JP2010174035A (ja) * 2007-05-18 2010-08-12 Semiconductor Energy Lab Co Ltd 有機金属錯体
JP2009016332A (ja) * 2007-07-03 2009-01-22 Samsung Sdi Co Ltd 有機発光素子
WO2009107541A1 (fr) * 2008-02-25 2009-09-03 パイオニア株式会社 Élément électroluminescent organique
WO2010016101A1 (fr) * 2008-08-04 2010-02-11 パイオニア株式会社 Élément électroluminescent organique
JP2010150518A (ja) * 2008-11-20 2010-07-08 Sumitomo Chemical Co Ltd アミン系高分子化合物及びそれを用いた発光素子

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013171872A1 (fr) * 2012-05-17 2013-11-21 パイオニア株式会社 Panneau électroluminescent (el) organique et dispositif électroluminescent
US9748509B2 (en) 2013-07-10 2017-08-29 Joled Inc. Organic EL element and organic EL display panel
WO2017033317A1 (fr) * 2015-08-26 2017-03-02 パイオニア株式会社 Dispositif électroluminescent
JPWO2017033317A1 (ja) * 2015-08-26 2018-06-14 パイオニア株式会社 発光装置
US10734598B2 (en) 2017-11-30 2020-08-04 Lg Display Co., Ltd. Organic light-emitting element and organic light-emitting display device using the same
CN111969017A (zh) * 2020-08-21 2020-11-20 合肥维信诺科技有限公司 显示面板及其制备方法
CN113725376A (zh) * 2021-08-30 2021-11-30 合肥京东方卓印科技有限公司 有机电致发光器件、制作其的方法及显示面板

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