Ultra High Efficiency Green Organic Light-Emitting Devices
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概要
- 論文の詳細を見る
We developed ultra high efficiency green organic light-emitting devices (OLEDs) using a novel electron transport material containing dipyridylphenyl moieties and green phosphorescent emitter, fac tris(2-phenylpyridine)iridium, Ir(ppy)3. An OLED with a simple structure of glass/indium–tin oxide/polymer buffer layer/arylamine derivative as a hole transport layer/Ir(ppy)3-doped dicarbazolylbiphenyl as an emitter layer/dipyridylphenyl derivative as an electron transport layer/LiF/Al exhibited low drive voltages, which were 2.5 V at 100 cd/m2 and 2.9 V at 1000 cd/m2. High external quantum efficiencies of 29% at 100 cd/m2 and 26% at 1000 cd/m2 were also observed, which lead to the ultra high power efficiencies of 133 lm/W at 100 cd/m2 and 107 lm/W at 1000 cd/m2.
- 2007-01-25
著者
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LI Yan-Jun
Optoelectronic Industry and Technology Development Association (OITDA)
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SASABE Hisahiro
Optoelectronic Industry and Technology Development Association (OITDA)
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SU Shi-Jian
Optoelectronic Industry and Technology Development Association (OITDA)
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TANAKA Daisaku
Optoelectronic Industry and Technology Development Association (OITDA)
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TAKEDA Takashi
Optoelectronic Industry and Technology Development Association (OITDA)
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Kido Junji
Optoelectronic Industry And Technology Development Association
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Li Yan-Jun
Optoelectronic Industry and Technology Development Association (OITDA), Bunkyo-ku, Tokyo 112-0014, Japan
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Sasabe Hisahiro
Optoelectronic Industry and Technology Development Association (OITDA), Bunkyo-ku, Tokyo 112-0014, Japan
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