Lost Hole-Blocking Property of Blue-Emitting Alq by Inserting Detached Layer
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概要
- 論文の詳細を見る
The authors found an interesting and strange phenomenon that is inexplicable using a simple energy diagram. Blue-emitting Alq (BAlq), a hole-blocking material, exhibits an excellent hole-blocking property in an organic light-emitting diode (LED) consisting of naphthyl-substituted diamime derivative (NPD) and BAlq. Nevertheless, its hole-blocking property is lost by inserting Alq3 between BAlq and a cathode. This fact suggests that an indirect interaction is imparted to the NPD/BAlq interface from a detached (not neighboring) layer. In addition, difference electroluminescence (EL) spectrum analysis is very effective in the discussion of EL mechanism.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-09-15
著者
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Mori Tatsuo
Department Of Electrical Engineering And Computer Science Graduate School Of Engineering Nagoya University
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Mizutani Teruyoshi
Department of Electrical and Electronic Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0529, Japan
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Mori Tatsuo
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Iwama Yuki
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Itoh Takaaki
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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