KR20050037400A - 유기전계발광장치 및 그 생산방법 - Google Patents
유기전계발광장치 및 그 생산방법 Download PDFInfo
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- KR20050037400A KR20050037400A KR1020040083343A KR20040083343A KR20050037400A KR 20050037400 A KR20050037400 A KR 20050037400A KR 1020040083343 A KR1020040083343 A KR 1020040083343A KR 20040083343 A KR20040083343 A KR 20040083343A KR 20050037400 A KR20050037400 A KR 20050037400A
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Classifications
-
- 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]
- H10K50/14—Carrier transporting layers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- 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
- H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
-
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Abstract
Description
Claims (21)
- 양극층;적어도 하나의 발광층 또는 적어도 하나의 발광층을 갖는 적어도 하나의 발광부위를 포함하는 유기구조;전자공여금속불순물 및 유기화합물을 포함하는 혼합층으로 된 저저항 전자운반층;알칼리금속이온, 알칼리토금속이온 및 희토류금속이온을 가진 군으로부터 선택된 적어도 하나의 금속이온을 포함하는 유기금속 착체 화합물을 포함한 유기금속착체함유층;환원반응생성층; 및음극을 순서대로 그 위에 적층하여 구비하는 기판을 포함하며, 양극층 및 음극층 중 적어도 하나는 투과성이고, 환원반응생성층은 유기금속착체화합물의 금속이온을 진공에서 대응금속으로 환원할 수 있는 열환원성금속을 유기금속착체함유층위에서 증착하고 그것들 사이에서 산화-환원반응을 야기하여 생성되는 층인 유기전계발광장치.
- 제1항에 있어서, 환원반응생성층은 유기금속착체함유층 및 음극층사이의 계면에서, 유기금속착체화합물의 금속이온을 진공에서 대응금속으로 환원할 수 있는 열환원성금속을 유기금속착체함유층위에서 증착하고, 그것들 사이에서 산화-환원반응을 야기하여 생성되는 층을 포함하는 유기전계발광장치.
- 제1항에 있어서, 음극층은 4.0 eV 이상의 일함수를 가진 금속을 포함하는 유기전계발광장치.
- 제1항에 있어서, 음극층은 도전성화합물을 포함하는 유기전계발광장치.
- 제1항에 있어서, 전자공여금속불순물은 4.0eV 미만의 이온화전위를 가진 유기전계발광장치.
- 제1항에 있어서, 전자공여금속불순물은 알칼리금속, 알칼리토금속 및 희토류금속을 가진 군으로부터 선택된 적어도 하나의 금속을 포함하는 유기전계발광장치.
- 제1항에 있어서, 전자공여금속불순물 및 유기화합물은 저저항 전자운반층내에서 1:10 내지 10:1 범위의 몰비로 혼합되는 유기전계발광장치.
- 제1항에 있어서, 저저항 전자운반층은 1.0 ×1010 Ωcm 미만의 저항율을 가진 유기전계발광장치.
- 제8항에 있어서, 저저항 전자운반층은 1.0 × 102 Ωcm 이상 및 1.0 × 1010 Ωcm 미만의 저항율을 가진 유기전계발광장치.
- 제1항에 있어서, 유기금속 착체포함층은 알칼리금속이온, 알칼리토금속이온 및 희토류금속이온을 가진 군으로부터 선택되는 적어도 하나의 금속이온을 함유하는 유기금속착체화합물만으로 형성되는 유기전계발광장치.
- 제10항에 있어서, 유기금속착체화합물만으로 형성된 유기층은 10 nm 이하 층두께를 가진 유기전계발광장치.
- 제1항에 있어서, 유기금속착체함유층은 알칼리금속이온, 알칼리토금속이온 및 희토류금속이온을 가진 군으로부터 선택된 적어도 하나의 금속이온을 함유하는 유기금속착체화합물, 및 적어도 하나의 전자운반 유기화합물의 혼합층을 포함하는 유기전계발광장치.
- 제12항에 있어서, 유기금속착체화합물 및 전자운반유기화합물들은 유기금속착체함유층내에 1:10 내지 10:1 범위 몰비로 혼합되는 유기전계발광장치.
- 제1항에 있어서, 환원반응생성층의 형성에서 사용된 열환원성금속은 음극층에서 사용된 금속과 동일한 유기전계발광장치.
- 제1항에 있어서, 열환원성금속은 알루미늄, 실리콘, 지르코늄, 티타늄 및 텅스텐을 가진 군으로부터 선택된 적어도 하나의 금속을 포함하는 유기전계발광장치.
- 제1항에 있어서, 열환원성금속은 저항성 열기상증착법, 전자빔기상증착법 및 레이저빔기상증착법 중 하나에 의해 층로서 증착되는 유기전계발광장치.
- 제4항에 있어서, 음극층은 저항성 열기상증착법, 전자빔기상증착법, 및 레이저빔기상증착법 중 하나로 형성되는 유기전계발광장치.
- 제4항에 있어서, 음극층은 스퍼터링법으로 층으로서 형성되고, 스퍼터링법에서 사용된 스퍼터링장치는 일정거리로 배치된 한 쌍의 마주보는 타겟, 각 타겟의 앞면주변부를 향해 전자를 반사시킬수 있는 반사전극, 및 수평자기장인, 각 타겟의 주변부 부근에서 타겟의 주변부에 평행한부분을 가진 수평자기장을 형성할 수 있는 자기장생성매질을 포함하는 대향타겟식 스퍼터링시스템인 유기전계발광장치.
- 제1항에 있어서, 열환원성금속 및 음극층의 형성에 사용된 금속 각각은 4.0 eV 이상의 일함수를 가진 유기전계발광장치.
- 제1항에 있어서, 열환원성금속 및 음극층형성에 사용된 금속 또는 전도전성화합물은 4.0 eV 이상의 일함수를 가진 유기전계발광장치.
- 양극층위에서, 하나이상의 발광층 또는 적어도 하나의 발광층을 가진 적어도 하나의 발광부위를 포함한, 유기구조를 형성하는 단계;유기구조위에서, 전자공여금속불순물 및 유기화합물의 혼합층을 포함하는 저저항 전자운반층을 형성하는 단계;저저항 전자운반층위에서, 알칼리금속이온, 알칼리토금속이온 및 희토류금속이온을 가진 군으로부터 선택된 적어도 하나의 금속이온을 가진 유기금속 착체화합물을 포함하는 유기금속착체함유층을 형성하는 단계;유기금속착체함유층위에, 진공에서 유기금속착체화합물의 금속이온을 대응금속으로 환원할 수 있는 열환원성금속을 기상증착에 의해 환원반응생성층을 형성하는 단계; 및환원반응생성층위에 금속 및 4.0 eV 이상의 일함수를 가진 도전성화합물 중 하나를 가진 음극층을 형성하는 단계를 포함하는 유기전계발광장치의 제조방법.
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EP1524707A2 (en) | 2005-04-20 |
EP1524707B1 (en) | 2015-12-09 |
TW200524478A (en) | 2005-07-16 |
US9203046B2 (en) | 2015-12-01 |
CN1610473A (zh) | 2005-04-27 |
JP2005123094A (ja) | 2005-05-12 |
CN1610473B (zh) | 2010-06-09 |
US20050084713A1 (en) | 2005-04-21 |
JP4683829B2 (ja) | 2011-05-18 |
KR100858106B1 (ko) | 2008-09-10 |
EP1524707A3 (en) | 2006-04-26 |
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