| Project/Area Number |
25600104
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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 |
Thin film/Surface and interfacial physical properties
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| Research Institution | Kagawa National College of Technology |
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Principal Investigator |
Okano Hiroshi 香川高等専門学校, 一般教育科, 教授 (60342565)
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| Research Collaborator |
Toshihiro Hosokawa 東洋炭素株式会社
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2014: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 光電変換 / 化学電池 / 酸化物半導体 / 酸化ニオブ / 酸化亜鉛 / グラファイトシート / 金属空気電池 |
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| Outline of Final Research Achievements |
We attempt to develop the solar assisted batteries based on metal-air batteries using graphite sheets. They are nothing more than chemical batteries if the solar do not assist. However, their power increase with increasing solar irradiation. The structures of these batteries consist of the oxide semiconductor on the graphite sheets cathode and metal anode. It was found that liquid process such as sol-gel methods and evaporation process such as spattering were very effective for mixing semiconductor to the graphite sheets. NbO having a low band gap of 1.2eV could be obtained by controlling N2 pressure at sputtering process. We found that photo current was increased by 18% with solar irradiation at the conventional battery with Al cathode and Cu anode. However, photo current was only increased by less than 1% with solar irradiation at the metal-air battery with graphite sheet for the cathode.
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