2017 Fiscal Year Final Research Report
Quest for Fundamental Principles in Photoinduced Charge Separation and Their Application
| Project/Area Number |
25220801
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Organic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
梅山 有和 京都大学, 工学研究科, 准教授 (30378806)
高野 勇太 北海道大学, 電子科学研究所, 准教授 (60580115)
村上 達也 富山県立大学, 工学部, 教授 (90410737)
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| Project Period (FY) |
2013-05-31 – 2018-03-31
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| Keywords | 光電荷分離 / 色素増感太陽電池 / 有機薄膜太陽電池 / ポルフィリン / フラーレン / カーボンナノチューブ / グラフェン / 膜電位 |
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| Outline of Final Research Achievements |
Our comprehensive researches revealed that the linker structures in the porphyrin-nanocarbon covalent composites have a large impact on their optical and photophysical properties. Specifically, moderate length-spacers between donor and acceptor were found to be essential to produce a long-lived charge-separated state efficiently. Fast decay of photoinduced charge-transfer states (i.e., exciplex state) to the ground state was observed in not only simple donor-acceptor linked systems, but also more complex dye-semiconducting electrode interface for dye-sensitized solar cells and donor-acceptor mixed interface for organic thin film solar cells. Integrated views and interpretation on the undesirable unique phenomena have been developed to give us a universal guideline on efficient photoinduced charge separation.
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| Free Research Field |
有機化学、光化学
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