2014 Fiscal Year Final Research Report
Development of manganese oxide-based redox capacitor capable of direct recharging via visible light-electron conversion
| Project/Area Number |
24350106
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Yamaguchi University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Toshihiko 山口大学, 大学院理工学研究科, 教授 (00179772)
TOMONO Kazuaki 山口大学, 大学院理工学研究科, 助教 (40516449)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | マンガン酸化物ナノシート / 光電変換 / 可視光 / キャパシタ / 光充電 / カーボンナノチューブ / 電析 / 薄膜 |
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| Outline of Final Research Achievements |
Manganese dioxide can absorb visible light, but there are few examples of the detection of photocurrent. The nanosheet structure of Mn dioxide can suppress the recombination of excited electrons and holes, effectively converting photons of visible light into electrons. On the other hand, Mn dioxide can storage energy (charges) based on its pseudocapacitance. In this study, we fabricated thin films consisting of laminated Mn dioxide nanosheets, evaluated their basic semiconducting properties, and measured the photocurrent. The photon-electron conversion efficiency was successfully improved by scaffolding carbon nanotubes with high conductivity. In the following, the pseudocapacitance and the photon/electron conversion characteristics were combined, and we proposed a new concept of photo recharge.
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| Free Research Field |
無機化学，電気化学，分析化学
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