Improvement of Light Extraction Efficiency for AlGaN-Based Deep Ultraviolet Light-Emitting Diodes
スポンサーリンク
概要
- 論文の詳細を見る
AlGaN-based deep ultraviolet light-emitting diodes (LEDs) with aluminum reflective electrodes deposited to cover both p- and n-mesh contact electrodes have been fabricated. A 1.55-fold increase in light extraction efficiency has been demonstrated. Despite their reduced contact area, the LEDs exhibited only a slight increase in forward voltage of 0.45 V at 20 mA. Also, their 50% lifetime was estimated to be about 10,000 h at 20 mA DC at room temperature by extrapolation. Owing to the reflective electrodes, a 288 nm LED with external quantum efficiency as high as 5.4% was achieved. The light output power was 4.6 mW at 20 mA.
- 2011-12-25
著者
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Amano Hiroshi
Department of Cardiology and Pneumology, Dokkyo University School of Medicine
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Kamiyama Satoshi
Faculty Of Science And Technology Meijo University
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Akasaki Isamu
Faculty Of Science And Technology Meijo University
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Iwaya Motoaki
Faculty Of Science And Technology Meijo University
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PERNOT Cyril
UV Craftory Co., Ltd.
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FUJITA Takehiko
UV Craftory Co., Ltd.
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HIRANO Akira
UV Craftory Co., Ltd.
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Inazu Tetsuhiko
Uv Craftory Co. Ltd.
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Fukahori Shinya
Uv Craftory Co. Ltd.
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Nagasawa Yosuke
Uv Craftory Co. Ltd.
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Yamaguchi Masahito
Department Of Electronic Engineering Faculty Of Engineering Osaka University
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TAKEUCHI Tetsuya
Faculty of Science and Technology, Meijo University
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Ippommatsu Masamichi
Uv Craftory Co. Ltd.
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Kim Myung
UV Craftory Co., Ltd., 14th Building, Meijo University, Nagoya 468-0073, Japan
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Pernot Cyril
UV Craftory Co., Ltd., 14th Building, Meijo University, Nagoya 468-0073, Japan
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HONDA Yoshio
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University
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Honda Yoshio
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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Fukahori Shinya
UV Craftory Co., Ltd., 14th Building, Meijo University, Nagoya 468-0073, Japan
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Kamiyama Satoshi
Faculty of Science and Technology, Meijo University, Nagoya 468-8502, Japan
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YAMAGUCHI Masahito
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University
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Yamaguchi Masahito
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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Hirano Akira
UV Craftory Co., Ltd., 14th Building, Meijo University, Nagoya 468-0073, Japan
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Honda Yoshio
Department of Chemistry, Faculty of Science, Kanazawa University
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