Multiple Exciton Generation and Recombination in Semiconductor Nanomaterial
| Project/Area Number |
24750016
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
KIM Hyeon-Deuk 京都大学, 理学(系)研究科(研究院), 助教 (30378533)
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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 |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 光励起ダイナミクス / ナノマテリアル / 量子凝縮系 / 非平衡現象 / 第一原理分子動力学法 / 量子ドット / 電子移動 / 光電変換効率 / ナノサイエンス / 光電変換 / 国際情報交換、アメリカ / 国際情報交換、カナダ |
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| Outline of Final Research Achievements |
I computationally investigated and elucidated photoexcited dynamics of electron, hole and exciton appearing in nano materials and nano complexes taking into account electron-phonon couplings. I also suggested some principles to drastically increase photovoltaic efficiency using nano materials and nano complexes. Especially, I computationally specified the origin of the anomalous temperature dependence of multiple exciton generation/recombination and found the mechanism of the ultrafast electron transfer appearing in the nano complex by developing the new time-domain ab initio molecular dynamics method.
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Report
(4 results)
Research Products
(29 results)
