KR102078435B1 - 유기 전계 발광 소자 및 이의 제조 방법 - Google Patents
유기 전계 발광 소자 및 이의 제조 방법 Download PDFInfo
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- KR102078435B1 KR102078435B1 KR1020160089386A KR20160089386A KR102078435B1 KR 102078435 B1 KR102078435 B1 KR 102078435B1 KR 1020160089386 A KR1020160089386 A KR 1020160089386A KR 20160089386 A KR20160089386 A KR 20160089386A KR 102078435 B1 KR102078435 B1 KR 102078435B1
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- hole injection
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
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- H01L51/5088—
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
- H10K50/171—Electron injection layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/15—Deposition of organic active material using liquid deposition, e.g. spin coating characterised by the solvent used
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/331—Metal complexes comprising an iron-series metal, e.g. Fe, Co, Ni
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/346—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising platinum
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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Abstract
Description
유기 금속 착물 1 | 유기 금속 착물 2 | 전압 | 효율 (EQE) | LT80 | |
실시예 1 | MoO2(acac)2 | Mo-ethylxantate | 4.53 | 5.06 | 30 |
실시예 2 | MoO2(acac)2 | Mo-diethylthiocarbamate | 4.3 | 4.21 | 28 |
실시예 3 | VO(acac)2 | V-ethylxantate | 4.69 | 4.91 | 15 |
실시예 4 | WO2(acac)2 | W-ethylxantate3 | 5.83 | 4.69 | 20 |
비교예 1 | w/o HIL | - | >20V | X | X |
201: 애노드
301: 정공주입층
401: 정공수송층
501: 발광층
601: 전자수송층
701: 캐소드
Claims (21)
- 삭제
- 청구항 1에 있어서, 상기 M은 Mo, V, W 또는 Re인 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 1에 있어서, 상기 코팅 조성물은 황을 포함하지 않는 유기 금속 착물을 더 포함하는 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 4에 있어서, 상기 황을 포함하지 않는 유기 금속 착물은 W, Mo, V, Re, Ni, Mn, Fe, Ru, Os, Rh, Pd, Pt, Zr, Ti, Cu 등을 포함할 수 있으며, 1종 또는 2종 이상의 금속과, 상기 금속에 결합된 유기 리간드를 포함하는 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 5에 있어서, 상기 황을 포함하지 않는 유기 금속 착물은 Mo, V, W 또는 Re를 포함하는 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 1에 있어서, 상기 유기용매는 알코올계 용매인 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 1에 있어서, 상기 유기용매는 케톤계 용매인 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 청구항 1에 있어서, 상기 유기용매는 하기 화학식 5로 나타내어지는 용매를 포함하는 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물:
[화학식 5]
상기 화학식 5에서 n은 1부터 20까지의 정수이고 l과 m은 각각 혹은 동시에 0부터 5까지의 정수이고 R1, R2, R3 및 R4는 각각 혹은 동시에 수소원자, 탄소수 1 내지 20의 알킬기, 탄소수 2 내지 20의 알케닐기, 탄소수 2 내지 20의 알키닐기, 탄소수 1 내지 20의 알콕시기, 탄소수 6 내지 40의 아릴기, 탄소수 2 내지 40의 헤테로 아릴기, 탄소수 1 내지 20의 에스테르기이다. - 청구항 1에 있어서, 상기 유기용매는 에틸렌 글리콜, 에틸렌글리콜 모노메틸이써, 에틸렌 글리콜 모노에틸이써, 에틸렌 글리콜 모노 프로필 이써, 에틸렌 글리콜 모노 부틸이써, 에틸렌 글리콜 모노펜틸 이써, 에틸렌 글리콜 모노헥실이써, 에틸렌 글리콜 디메틸이써, 에틸렌 글리콜 디에틸이써, 에틸렌 글리콜 디프로필이써, 에틸렌 글리콜 디부틸이써, 에틸렌 글리콜 디펜틸 이써, 에틸렌 글리콜 디헥실이써, 1,2 프로판디올, 1,3-프로판디올, 1,4-부탄디올, 1,2-부탄 디올, 1,3-부탄 디올, 디엘틸렌 글리콜, 디에틸렌 글리콜 모노메틸이써, 디에틸렌 글리콜 모노에틸이써, 디에틸렌 글리콜 모노 프로필 이써, 디에틸렌 글리콜 모노부틸 이써, 디에틸렌 디메틸 이써, 디에틸렌 글리콜 디에틸 이써, 디에틸렌 글리콜 디 프로필 이써, 디에틸렌 글리콜 디 부틸 이써, 에틸렌 글리콜 디아세테이트, PEG 600, 및 트리에틸렌 클리콜 중 적어도 하나를 포함하는 것인 유기 전계 발광 소자의 정공 주입 또는 수송층 또는 전하발생층 코팅 조성물.
- 기판을 준비하는 단계;
상기 기판 상에 제1 전극을 형성하는 단계;
상기 제1 전극 상에 1층 이상의 유기물층을 형성하는 단계; 및
상기 유기물층 상에 제2 전극을 형성하는 단계를 포함하고,
상기 제1 전극과 유기물층 사이, 상기 제2 전극과 유기물층 사이, 또는 상기 유기물층이 2층 이상 존재하는 경우 유기물층들 사이에, 청구항 1 및 3 내지 10 중 어느 한 항에 따른 코팅 조성물을 이용하여 정공 주입 또는 수송층 또는 전하발생층을 코팅 방법으로 형성하는 단계를 더 포함하는 유기 전계 발광 소자의 제조 방법. - 청구항 11에 있어서, 상기 코팅 조성물을 이용하여 형성된 정공 주입 또는 수송층 또는 전하발생층의 두께는 1 nm 내지 1,000 nm인 것인 유기 전계 발광 소자의 제조방법.
- 청구항 11에 있어서, 상기 코팅 조성물을 이용하여 형성된 정공 주입 또는 수송층 또는 전하발생층를 형성한 후 어닐링하는 단계를 더 포함하는 유기 전계 발광 소자의 제조방법.
- 청구항 13에 있어서, 상기 어닐링은 온도 150~250 ℃에서 수행하는 것인 유기 전계 발광 소자의 제조방법.
- 제1 전극; 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비되는 1층 이상의 유기물층을 포함하는 유기 전계 발광 소자로서,
상기 제1 전극과 유기물층 사이, 상기 제2 전극과 유기물층 사이, 또는 상기 유기물층이 2층 이상 존재하는 경우 유기물층들 사이에 구비되고, 하기 화학식 1 내지 4 중 하나로 표시되는 화합물 중 1 또는 2 이상을 포함하는 금속 산-황화물을 포함하는 정공 주입 또는 수송층 또는 전하발생층을 더 포함하는 유기 전계 발광 소자:
[화학식 1]
[화학식 2]
[화학식 3]
[화학식 4]
상기 화학식 1 내지 4에 있어서,
M은 5B, 6B 또는 7B 족 전이금속이고,
n은 1 내지 7의 정수이며,
R1 내지 R6는 서로 같거나 상이하고, 각각 독립적으로 또는 동시에 탄소수 1 내지 20의 알킬기 또는 탄소수 6 내지 20의 아릴기 또는 헤테로기이다. - 제1 전극; 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비되는 1층 이상의 유기물층을 포함하는 유기 전계 발광 소자로서,
상기 제1 전극과 유기물층 사이, 상기 제2 전극과 유기물층 사이, 또는 상기 유기물층이 2층 이상 존재하는 경우 유기물층들 사이에 구비되고, 청구항 1에 따른 코팅 조성물을 이용하여 형성된 정공 주입 또는 수송층 또는 전하발생층을 더 포함하는 유기 전계 발광 소자. - 청구항 15 또는 16에 있어서, 상기 정공 주입 또는 수송층 또는 전하발생층의 두께는 1 nm 내지 1,000 nm인 것인 유기 전계 발광 소자.
- 청구항 15 또는 16에 있어서, 상기 정공 주입 또는 수송층 또는 전하발생층은 어닐링된 것인 유기 전계 발광 소자.
- 청구항 15 또는 16에 있어서, 상기 정공 주입 또는 수송층 또는 전하발생층은 온도 150~250 ℃에서 어닐링된 것인 유기 전계 발광 소자.
- 청구항 15 또는 16에 있어서, 상기 정공 주입 또는 수송층 또는 전하발생층 내의 각 원소의 비율을 M(OxSy)z으로 나타낼 때 0 < Z ≤ 4이고, x+y=1일 때 0 ≤ x < 1, 0 < y ≤1인 것인 유기 전계 발광 소자.
- 청구항 15 또는 16에 있어서, 상기 정공 주입 또는 수송층 또는 전하발생층의 밴드갭은 1.8~3.5 eV인 것인 유기 전계 발광 소자.
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JP6114730B2 (ja) * | 2014-10-24 | 2017-04-12 | 株式会社豊田中央研究所 | 摺動システム |
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JP2002343568A (ja) * | 2001-05-10 | 2002-11-29 | Sony Corp | 有機電界発光素子 |
KR100548689B1 (ko) | 2002-10-31 | 2006-02-02 | 세이코 엡슨 가부시키가이샤 | 일렉트로루미네선스 장치의 제조 방법 및일렉트로루미네선스 장치, 및 전자 기기 |
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JP2019525453A (ja) | 2019-09-05 |
WO2018012782A2 (ko) | 2018-01-18 |
EP3471161A4 (en) | 2019-04-24 |
EP3471161B1 (en) | 2020-03-18 |
JP6789323B2 (ja) | 2020-11-25 |
CN109478601A (zh) | 2019-03-15 |
EP3471161A2 (en) | 2019-04-17 |
US11158833B2 (en) | 2021-10-26 |
KR20180007880A (ko) | 2018-01-24 |
CN109478601B (zh) | 2021-01-29 |
US20200127222A1 (en) | 2020-04-23 |
WO2018012782A3 (ko) | 2018-08-09 |
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