p-GaN Cathode Degradation Correlated with Hydrogen Passivation during Water Photolysis under UV Light
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概要
- 論文の詳細を見る
We investigated the mechanism of p-GaN cathode degradation in Na2SO4 solution under UV light irradiation. During water photolysis, photocurrent and hydrogen production decreased with time at a zero bias. Samples degraded by UV light irradiation showed an increase in photoluminescence (PL) intensity and a decrease in hole concentration compared with those before UV light irradiation. Annealing the degraded samples at 850 °C in N2 ambient resulted in a decrease in PL intensity and an increase in hole concentration. These changes suggest that hydrogen passivation occurs as the mechanism of p-GaN cathode degradation during water photolysis.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2007-02-15
著者
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Wakao Kiyohide
R&d Center Nippon Emc. Ltd.
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Narumi Toru
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kobayashi Naoki
Department Of Orthopaedic Surgery Dokkyo University School Of Medicine
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Yamamoto Jun
R&d Center Nippon Emc. Ltd.
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Takagi Daigo
Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo
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Yamamoto Jun
R&D Center, Nippon EMC., Ltd., Tama, Tokyo 206-0001, Japan
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Ban Yuzaburo
R&D Center, Nippon EMC., Ltd., Tama, Tokyo 206-0001, Japan
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Wakao Kiyohide
R&D Center, Nippon EMC., Ltd., Tama, Tokyo 206-0001, Japan
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Ban Yuzaburo
R&d Center Nippon Emc. Ltd.
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Takagi Daigo
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kobayashi Naoki
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Kobayashi Naoki
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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