High-Efficiency Polymer Light-Emitting Diode via Al Interfacial Modification Using Polyurethane
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概要
- 論文の詳細を見る
An efficient polymer light-emitting diode (PLED) was fabricated by inserting polyurethane (PU) between a poly(2-methoxy-5-(2$'$-ethylhexyloxy)-1,4-phenylene vinylene) layer and an Al cathode. The electroluminescence (EL) efficiency of the PU-based device can reach 1.27 cd/A, which is much higher than that of a device without PU (0.015 cd/A). The enhanced performance is attributed to both the hole-blocking capacity of the PU layer and the specific interaction between PU and the deposited Al, significantly facilitating the injection of electrons. Furthermore, the electron injection ability of PU-based devices was found to strongly depend on the thicknesses of the PU and Al layers.
- 2006-08-25
著者
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Lee Yuh-lang
Department Of Applied Chemistry Chia-nan College Of Pharmacy And Science
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Guo Tzung-fang
Institute Of Electro-optical Science And Engineering Advanced Optoelectronic Technology Center Natio
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Wen Ten-chin
Department Of Chemical Engineering National Cheng Kung University
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Kuo Tzu-Yin
Department of Chemical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701, Republic of China
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Hsieh Sung-Nien
Department of Chemical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701, Republic of China
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Wen Ten-Chin
Department of Chemical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701, Republic of China
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Guo Tzung-Fang
Institute of Electro-Optical Science and Engineering, National Cheng Kung University, Tainan, Taiwan 701, Republic of China
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