| Project/Area Number |
15K13937
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
Taketomo Sato 北海道大学, 量子集積エレクトロニクス研究センター, 准教授 (50343009)
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| Co-Investigator(Kenkyū-buntansha) |
橋詰 保 北海道大学, 量子集積エレクトロニクス研究センター, 教授 (80149898)
本久 順一 北海道大学, 情報科学研究科, 教授 (60212263)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 窒化ガリウム / 光電気化学 / 多孔質構造 / エネルギー変換 / 半導体物性 / 半導体超微細化 / ナノ材料 / 光物性 / 新エネルギー |
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| Outline of Final Research Achievements |
GaN-based photocatalyst electrodes utilizing electrochemically-formed porous structures have been developed. The precise control of pore diameter and depth has been achieved by optimizing the condition of electrochemical etching and subsequent wet-chemical etching. The decrease of photo reflectance and increase of the effective surface area of GaN porous structures lead to the improvement of the photo-electrochemical conversion efficiency. The functionalization utilizing NiO and Cu2O on n-GaN electrodes was very effective respectively for the improvement of corrosion resistance and the photoelectrochemical conversion in visible light region (400-600nm).
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