| Project/Area Number |
25620155
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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 |
Energy-related chemistry
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
WATANABE Isao 独立行政法人理化学研究所, 仁科加速器研究センター, 専任研究員 (40260195)
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| Co-Investigator(Renkei-kenkyūsha) |
KAWASAKI Ikuto 独立行政法人理化学研究所, 仁科加速器研究センター, 基礎特別研究員 (90552307)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ミュオンスピン緩和法 / 有機太陽光発電 / 電子伝達 / 汎関数密度計算 / 国際研究協力 / 国際研究者交流 / エネルギー問題 / 発電 / 半密度関数計算 / 国際研究者交流鵜 / μSR / 電子伝導 / 有機材料 / 低次元性 |
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| Outline of Final Research Achievements |
The muon-spin relaxation (muSR) technique has been applied to organic solar-cell materials. The flush-lamp muSR technique by using a pulsed muon beam has been used for this research creating light-exited electrons in organic materials. Some possible organic solar-cell materials like Polythiophene, PC71BM, PTB7 and so on have been chosen. We have succeeded to observe the muon-spin depolarization behavior which is caused by light-exited electron when the flush lamp is turned on. This result opens a new research direction to use muSR as a microscopic method for the investigation of light-exited electrons in organic solar-cell materials from the microscopic viewpoint. In addition to this, the importance of the information of muon sites in materials has been found. This is a new valuable finding of the current research. Accordingly, we have newly started to develop a way to estimate muon sites in organic and related system by using the density functional theory.
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