High-Power GaN-Based Light-Emitting Diodes with Transparent Indium Zinc Oxide Films
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概要
- 論文の詳細を見る
Large-area ($0.6\,\text{mm}\times 0.6\,\text{mm}$–$1.5\,\text{mm}\times 1.5\,\text{mm}$), high-power GaN-based blue-light-emitting diodes (LEDs) with an indium zinc oxide (IZO) overlay as a transparent conduction layer (TCL) and the effects of the overlayer on light output power (Lop) improvement are investigated. Experimental results show that sputter-deposited IZO TCLs with thicknesses in the range of 100–500 nm have a low resistivity ranging from $12.1--3.1\times 10^{-4}$ $\Omega$-cm and a transparency ${\geq}80$% in the visible light range. The benefit obtained from the use of an IZO TCL is much more profound in LEDs of larger chip size; in addition, the optimum IZO TCL thickness is approximately 300 nm. As compared to the case without an IZO layer, under an injection current of 60–1000 mA, a 39–90% improvement in Lop has been achieved from LEDs ($1.5\,\text{mm}\times 1.5\,\text{mm}$) with a 300-nm-thick IZO TCL.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-04-15
著者
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Liou Bor-wen
Department Of Computer Science And Information Engineering Wu-feng Institute Of Technology
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UANG Kai-Ming
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University
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CHANG Shu-Cheng
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University
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Wu Chin-kun
Institute Of Microelectronics Department Of Electrical Engineering National Cheng Kung University
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Chen Shiue-lung
Institute Of Microelectronics Dept. Of Electrical Eng. National Cheng Kung Univ.
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Wang Shui-jinn
Institute Of Microelectronics Department Of Electrical Engineering National Cheng Kung University
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Chen Tron-min
Institute Of Microelectronics Dept. Of Electrical Eng. National Cheng Kung Univ.
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Chang Shu-Cheng
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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Chen Tron-Min
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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Uang Kai-Ming
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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Wang Shui-Jinn
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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Liou Bor-Wen
Department of Computer Science and Information Engineering, Wu-Feng Institute of Technology, Chiayi 621, Taiwan, Republic of China
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Wu Chin-Kun
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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Chen Shiue-Lung
Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, Republic of China
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