Efficiency Enhancement Mechanism in Yellow Organic Light-Emitting Devices with Multiple Heterostructures Acting as an Emitting Layer
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概要
- 論文の詳細を見る
The electrical properties of organic light-emitting devices (OLEDs) with multiple heterostructures consisting of N,N$'$-bis-(1-naphthyl)-N,N$'$-diphenyl-1,1$'$-biphenyl-4,4$'$-diamine (NPB)/5,6,11,12-tetraphenylnaphthacene (rubrene) emitting layers were investigated. The efficiencies of the OLEDs were significantly affected by the number of heterostructures. Although the turn-on voltage of the OLEDs increases with increasing number of NPB/rubrene heterostructures owing to an increase in the number of trapped holes, the efficiency of the OLEDs increases with increasing driving voltage and increasing number of heterostructures. The efficiency enhancement mechanism in the OLEDs with multiple heterostructures is described on the basis of the electrical results.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-02-15
著者
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Kim Young
Department Of Agricultural Chemistry The University Of Tokyo
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Kim Tae
Research Institute And Hospital National Cancer Center
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Choo Dong
Research Institute Of Information Display Department Of Electronics And Computer Engineering Hanyang
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Yoon Young
Research Institute Of Information Display Department Of Electronics And Computer Engineering Hanyang
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Lee Hyun
Department Of Anesthesia And Pain Medicine School Of Medicine Pusan National University
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Kim Jun
Department Of Bioengineering University Of California Los Angeles
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Lee Hyun
Department of Information Display Engineering and COMID, Hong-ik University, Seoul 121-791, Korea
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Kim Jun
Department of Electronic Engineering, Hong-ik University, Seoul 121-791, Korea
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KIM Jun
Department of Advanced Material Science and Engineering, Yonsei University
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Kim Tae
Research Center for Time-domain Nano-functional Devices and School of Electrical Engineering, Korea University, Seoul 136-701, Korea
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Choo Dong
Research Institute of Information Display, Department of Electronics and Computer Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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Yoon Young
Research Institute of Information Display, Department of Electronics and Computer Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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