JP2003086381A5 - - Google Patents
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- JP2003086381A5 JP2003086381A5 JP2001271543A JP2001271543A JP2003086381A5 JP 2003086381 A5 JP2003086381 A5 JP 2003086381A5 JP 2001271543 A JP2001271543 A JP 2001271543A JP 2001271543 A JP2001271543 A JP 2001271543A JP 2003086381 A5 JP2003086381 A5 JP 2003086381A5
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- electron transport
- organic compound
- transport layer
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Description
【特許請求の範囲】
【請求項１】基板上に形成された第一電極上に、少なくとも有機化合物からなる発光層および電子輸送層を含む薄膜層と、薄膜層上に形成された第二電極とを含む発光素子において、前記電子輸送層は分子量が５８０以上の有機化合物からなり、前記電子輸送層の少なくとも一部分にドナー性不純物がドーピングされており、前記有機化合物がピラジン骨格、トリアジン骨格、オキサジアゾール骨格、トリアゾール骨格のうち少なくとも１種類を有することを特徴とする発光素子。
【請求項２】基板上に形成された第一電極上に、少なくとも有機化合物からなる発光層および電子輸送層を含む薄膜層と、薄膜層上に形成された第二電極とを含む発光素子において、前記電子輸送層は分子量が４００以上の有機化合物からなり、前記電子輸送層の少なくとも一部分にドナー性不純物がドーピングされており、前記有機化合物が非金属錯体系複素環化合物であって、該複素環を構成する環構造１つにつきピリジン骨格、チオフェン骨格、シロール骨格、ベンゾキノリン骨格のうち少なくとも１種類を有することを特徴とする発光素子。
【請求項３】ドナー性不純物がアルカリ金属であることを特徴とする請求項１または２記載の発光素子。
【請求項４】電子輸送層および発光層の合計膜厚が５０ｎｍ以上であることを特徴とする請求項１または２記載の発光素子。
[Claims]
1. A light emitting device comprising: a thin film layer including at least a light emitting layer made of an organic compound and an electron transport layer on a first electrode formed on a substrate; and a second electrode formed on the thin film layer. The electron transport layer is made of an organic compound having a molecular weight of 580 or more, and at least a part of the electron transport layer is doped with a donor impurity; and the organic compound is a pyrazine skeleton, a triazine skeleton, an oxadiazole skeleton, or a triazole skeleton. A light-emitting element having at least one of the following .
To 2. A on the first electrode formed on the substrate, the light emitting device including a thin film layer including a light emitting layer and an electron transport layer consisting of at least an organic compound and a second electrode formed on the thin film layer The electron transport layer is made of an organic compound having a molecular weight of 400 or more, and at least a part of the electron transport layer is doped with a donor impurity, and the organic compound is a non-metal complex heterocyclic compound; A light-emitting element having at least one of a pyridine skeleton, a thiophene skeleton, a silole skeleton, and a benzoquinoline skeleton per ring structure constituting a ring .
3. A light emitting device according to claim 1 or 2, wherein a donor impurity, characterized in that an alkali metal.
4. A light emitting device according to claim 1 or 2 wherein the total thickness of the electron transport layer and the luminescent layer, characterized in that at 50nm or more.
【０００６】
【課題を解決するための手段】
本発明は、基板上に形成された第一電極上に、少なくとも有機化合物からなる発光層および電子輸送層を含む薄膜層と、薄膜層上に形成された第二電極とを含む発光素子において、前記電子輸送層は分子量が５８０以上の有機化合物からなり、前記電子輸送層の少なくとも一部分にドナー性不純物がドーピングされており、前記有機化合物がピラジン骨格、トリアジン骨格、オキサジアゾール骨格、トリアゾール骨格のうち少なくとも１種類を有することを特徴とする発光素子である。
[0006]
[Means for Solving the Problems]
The present invention provides a light-emitting element including a first electrode formed on a substrate, a thin-film layer including at least a light-emitting layer made of an organic compound and an electron transport layer, and a second electrode formed on the thin-film layer. The electron transport layer is made of an organic compound having a molecular weight of 580 or more, and at least a part of the electron transport layer is doped with a donor impurity. The organic compound has a pyrazine skeleton, a triazine skeleton, an oxadiazole skeleton, and a triazole skeleton. A light-emitting element having at least one of them .
また、本発明は、基板上に形成された第一電極上に、少なくとも有機化合物からなる発光層および電子輸送層を含む薄膜層と、薄膜層上に形成された第二電極とを含む発光素子において、前記電子輸送層は分子量が４００以上の有機化合物からなり、前記電子輸送層の少なくとも一部分にドナー性不純物がドーピングされており、前記有機化合物が非金属錯体系複素環化合物であって、該複素環を構成する環構造１つにつきピリジン骨格、チオフェン骨格、シロール骨格、ベンゾキノリン骨格のうち少なくとも１種類を有することを特徴とする発光素子である。 In addition, the present invention provides a light emitting device including, on a first electrode formed on a substrate, a thin film layer including at least a light emitting layer made of an organic compound and an electron transport layer, and a second electrode formed on the thin film layer In the above, the electron transport layer is made of an organic compound having a molecular weight of 400 or more, at least a part of the electron transport layer is doped with a donor impurity, and the organic compound is a non-metal complex heterocyclic compound, The light-emitting element is characterized by having at least one of a pyridine skeleton, a thiophene skeleton, a silole skeleton, and a benzoquinoline skeleton per ring structure constituting a heterocyclic ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001271543A JP5223163B2 (en) | 2001-09-07 | 2001-09-07 | Light emitting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001271543A JP5223163B2 (en) | 2001-09-07 | 2001-09-07 | Light emitting element |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003086381A JP2003086381A (en) | 2003-03-20 |
| JP2003086381A5 true JP2003086381A5 (en) | 2008-10-16 |
| JP5223163B2 JP5223163B2 (en) | 2013-06-26 |
Family
ID=19097036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001271543A Expired - Lifetime JP5223163B2 (en) | 2001-09-07 | 2001-09-07 | Light emitting element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5223163B2 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7141817B2 (en) | 2001-11-30 | 2006-11-28 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device |
| US7074534B2 (en) | 2002-07-10 | 2006-07-11 | E. I. Du Pont De Nemours And Company | Polymeric charge transport compositions and electronic devices made with such compositions |
| US20070018568A1 (en) * | 2002-11-06 | 2007-01-25 | Yoshiaki Nagara | Organic electroluminescent device |
| DE10356099A1 (en) * | 2003-11-27 | 2005-07-07 | Covion Organic Semiconductors Gmbh | Organic electroluminescent element |
| US8487527B2 (en) | 2005-05-04 | 2013-07-16 | Lg Display Co., Ltd. | Organic light emitting devices |
| US7777407B2 (en) | 2005-05-04 | 2010-08-17 | Lg Display Co., Ltd. | Organic light emitting devices comprising a doped triazine electron transport layer |
| US7943244B2 (en) | 2005-05-20 | 2011-05-17 | Lg Display Co., Ltd. | Display device with metal-organic mixed layer anodes |
| US7728517B2 (en) | 2005-05-20 | 2010-06-01 | Lg Display Co., Ltd. | Intermediate electrodes for stacked OLEDs |
| US7750561B2 (en) | 2005-05-20 | 2010-07-06 | Lg Display Co., Ltd. | Stacked OLED structure |
| US7811679B2 (en) | 2005-05-20 | 2010-10-12 | Lg Display Co., Ltd. | Display devices with light absorbing metal nanoparticle layers |
| 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) |
| WO2007074893A1 (en) * | 2005-12-28 | 2007-07-05 | Semiconductor Energy Laboratory Co., Ltd. | Oxadiazole derivative, and light emitting element, light emitting device, and electronic device using the oxadiazole derivative |
| US9112170B2 (en) | 2006-03-21 | 2015-08-18 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, and electronic device |
| KR101148859B1 (en) * | 2008-03-19 | 2012-05-29 | 도레이 카부시키가이샤 | Luminescent element material and luminescent element |
| US20100237773A1 (en) | 2009-03-20 | 2010-09-23 | Semiconductor Energy Laboratory Co., Ltd. | Carbazole Derivative with Heteroaromatic Ring, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Carbazole Derivative with Heteroaromatic Ring |
| WO2012024132A2 (en) * | 2010-08-16 | 2012-02-23 | University Of Washington Through Its Center For Commercialization | Solution-processable electron-transport materials and related organic optoelectronic devices |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157473A (en) * | 1993-12-06 | 1995-06-20 | Chisso Corp | Triazine derivative, its production and electric field luminescent element using the same |
| JP2918150B2 (en) * | 1995-07-17 | 1999-07-12 | チッソ株式会社 | Organic electroluminescent device using silacyclopentadiene derivative |
| JP3656318B2 (en) * | 1996-04-26 | 2005-06-08 | 東洋インキ製造株式会社 | Organic electroluminescence device material and organic electroluminescence device using the same |
| JPH10270171A (en) * | 1997-01-27 | 1998-10-09 | Junji Kido | Organic electroluminescent element |
| JPH10340786A (en) * | 1997-06-09 | 1998-12-22 | Toyo Ink Mfg Co Ltd | Organic electroluminecent element material and organic electroluminescent element using it |
| JP3266573B2 (en) * | 1998-04-08 | 2002-03-18 | 出光興産株式会社 | Organic electroluminescence device |
| JP3924943B2 (en) * | 1998-08-24 | 2007-06-06 | 東洋インキ製造株式会社 | Organic electroluminescent device material and organic electroluminescent device using the same |
| JP2000150152A (en) * | 1998-11-16 | 2000-05-30 | Toyo Ink Mfg Co Ltd | Organic electroluminescence display device |
-
2001
- 2001-09-07 JP JP2001271543A patent/JP5223163B2/en not_active Expired - Lifetime
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