| 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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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2012: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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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 / マンガン酸化物 / 光キャパシタ / グラフェン / 近赤外 / 電気化学析出 / ナノシート / 光電流 / 層状マンガン酸化物 |
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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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