KR100813851B1 - 투명 전도성 산화막인 캐소드를 구비하는 유기전계발광소자및 그의 제조방법 - Google Patents
투명 전도성 산화막인 캐소드를 구비하는 유기전계발광소자및 그의 제조방법 Download PDFInfo
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- KR100813851B1 KR100813851B1 KR1020070033749A KR20070033749A KR100813851B1 KR 100813851 B1 KR100813851 B1 KR 100813851B1 KR 1020070033749 A KR1020070033749 A KR 1020070033749A KR 20070033749 A KR20070033749 A KR 20070033749A KR 100813851 B1 KR100813851 B1 KR 100813851B1
- Authority
- KR
- South Korea
- Prior art keywords
- oxide
- film
- light emitting
- organic light
- indium
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims abstract description 46
- 229910003437 indium oxide Inorganic materials 0.000 claims abstract description 25
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical group [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 23
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 12
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims abstract description 11
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 claims abstract description 10
- KWXIRYKCFANFRC-UHFFFAOYSA-N [O--].[O--].[O--].[Al+3].[In+3] Chemical compound [O--].[O--].[O--].[Al+3].[In+3] KWXIRYKCFANFRC-UHFFFAOYSA-N 0.000 claims abstract description 9
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 claims abstract description 8
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- 239000007924 injection Substances 0.000 claims description 35
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- 239000002184 metal Substances 0.000 claims description 9
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
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- 229910052738 indium Inorganic materials 0.000 claims description 6
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- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims description 5
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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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
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- 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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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3026—Top emission
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims (18)
- 소자 기판 상에 위치하는 애노드;상기 애노드 상에 위치하고, 적어도 유기발광층을 구비하는 유기기능막; 및상기 유기기능막 상에 위치하고, 투명 전도성 산화막인 캐소드를 포함하는 것을 특징으로 하는 유기전계발광소자.
- 제1항에 있어서,상기 투명 전도성 산화막은 플라즈마 지원 열증발법(plasma assisted thermal evaporation)을 사용하여 형성한 것을 특징으로 하는 유기전계발광소자.
- 제1항에 있어서,상기 투명 전도성 산화막은 인듐 산화(Indium Oxide; IO)막, 인듐 주석 산화(Indium Tin Oxide; ITO)막, 주석 산화(Tin Oxide; TO)막, 인듐 아연 산화(Indium Zinc Oxide; IZO)막, 알루미늄 아연 산화(Aluminum Zinc Oxide; AZO)막, 알루미늄 주석 산화(Aluminum Tin Oxide; ATO)막 또는 알루미늄 인듐 산화(Aluminum Indium Oxide; AIO)막인 것을 특징으로 하는 유기전계발광소자.
- 제1항에 있어서,상기 유기기능막과 상기 캐소드 사이에 위치하는 전자주입강화층(electron injection enhancing layer)을 더 포함하는 것을 특징으로 하는 유기전계발광소자.
- 제4항에 있어서,상기 전자주입강화층은 표면깊이(skin depth) 미만의 두께를 갖는 금속층인 것을 특징으로 하는 유기전계발광소자.
- 제4항에 있어서,상기 전자주입강화층은 Mg, Ca 또는 In을 함유하는 것을 특징으로 하는 유기전계발광소자.
- 제1항에 있어서,상기 애노드는 금(Au) 또는 백금(Pt)을 함유하는 것을 특징으로 하는 유기전계발광소자.
- 제1항에 있어서,상기 애노드는 투명 전도성 산화물질에 절연 산화물질이 도핑된 막인 것을 특징으로 하는 유기전계발광소자.
- 제8항에 있어서,상기 투명 전도성 산화물질은 인듐 산화물, 인듐 주석 산화물, 주석 산화물, 인듐 아연 산화물, 알루미늄 아연 산화물, 알루미늄 주석 산화물 또는 알루미늄 인듐 산화물이고,상기 절연 산화물질은 란탄 산화물(lanthanum oxide), 이트륨 산화물(yttrium oxide), 베릴륨 산화물(beryllium oxide), 티타늄 산화물(titanium oxide), 실리콘 산화물(silicon oxide), 갈륨 산화물(gallium oxide), 팔라듐 산화물(palladium oxide) 또는 사마륨 산화물(samarium oxide)인 것을 특징으로 하는 유기전계발광소자.
- 소자 기판 상에 애노드를 형성하는 단계;상기 애노드 상에 적어도 유기발광층을 구비하는 유기기능막을 형성하는 단계; 및상기 유기기능막 상에 투명 전도성 산화막인 캐소드를 형성하는 단계를 포함하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제10항에 있어서,상기 투명 전도성 산화막은 플라즈마 지원 열증발법을 사용하여 형성하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제10항에 있어서,상기 투명 전도성 산화막은 인듐 산화막, 인듐 주석 산화막, 주석 산화막, 인듐 아연 산화막, 알루미늄 아연 산화막, 알루미늄 주석 산화막 또는 알루미늄 인듐 산화막인 것을 특징으로 하는 유기전계발광소자의 제조방법
- 제10항에 있어서,상기 캐소드를 형성하기 전에, 상기 유기기능막 상에 전자주입강화층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제13항에 있어서,상기 전자주입강화층은 표면깊이 미만의 두께를 갖는 금속층으로 형성하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제14항에 있어서,상기 전자주입강화층은 Mg, Ca 또는 In을 함유하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제10항에 있어서,상기 애노드는 금(Au) 또는 백금(Pt)을 함유하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제10항에 있어서,상기 애노드는 투명 전도성 산화물질에 절연 산화물질이 도핑하여 형성하는 것을 특징으로 하는 유기전계발광소자의 제조방법.
- 제17항에 있어서,상기 투명 전도성 산화물질은 인듐 산화물, 인듐 주석 산화물, 주석 산화물, 인듐 아연 산화물, 알루미늄 아연 산화물, 알루미늄 주석 산화물 또는 알루미늄 인듐 산화물이고,상기 절연 산화물질은 란탄 산화물, 이트륨 산화물, 베릴륨 산화물, 티타늄 산화물, 실리콘 산화물, 갈륨 산화물, 팔라듐 산화물 또는 사마륨 산화물인 것을 특징으로 하는 유기전계발광소자의 제조방법.
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KR1020070033749A KR100813851B1 (ko) | 2007-04-05 | 2007-04-05 | 투명 전도성 산화막인 캐소드를 구비하는 유기전계발광소자및 그의 제조방법 |
JP2008065866A JP4871901B2 (ja) | 2007-04-05 | 2008-03-14 | 透明伝導性酸化膜のカソードを備える有機電界発光素子及びその製造方法 |
US12/053,900 US7838327B2 (en) | 2007-04-05 | 2008-03-24 | Organic light-emitting device including transparent conducting oxide layer as cathode and method of manufacturing the same |
TW097112096A TWI453967B (zh) | 2007-04-05 | 2008-04-03 | 包含透明導電氧化物層作為陰極之有機發光裝置及其製造方法 |
CNA2008100898599A CN101281954A (zh) | 2007-04-05 | 2008-04-03 | 透明导电氧化物层作为阴极的有机发光装置及其制造方法 |
EP08251304A EP1978575A3 (en) | 2007-04-05 | 2008-04-03 | Organic light-emitting device including transparent conducting oxide layer as cathode and method of manufacturing the same |
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US7838327B2 (en) | 2010-11-23 |
CN101281954A (zh) | 2008-10-08 |
US20080246050A1 (en) | 2008-10-09 |
EP1978575A2 (en) | 2008-10-08 |
TWI453967B (zh) | 2014-09-21 |
TW200849690A (en) | 2008-12-16 |
JP4871901B2 (ja) | 2012-02-08 |
EP1978575A3 (en) | 2011-08-03 |
JP2008258157A (ja) | 2008-10-23 |
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