2021 Fiscal Year Final Research Report
Development of high mobility polored organic semiconductors for organic radiation detectors
| Project/Area Number |
19K05336
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 31010:Nuclear engineering-related
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| Research Institution | National Institute of Technology, Toyama College |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
高田 英治 富山高等専門学校, その他部局等, 教授 (00270885)
岡本 敏宏 東京大学, 大学院新領域創成科学研究科, 准教授 (80469931)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 有機半導体単結晶 / 分子ダイポール / 放射線検出 |
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| Outline of Final Research Achievements |
In this work, toward organic direct radiation detectors, new organic semiconductors with high content rate of sulfur atoms were developed and the mechanism of organic radiation detectors were studied. The new organic semiconductors have substituents including sulfur atoms that interact with radiation rays more effectively than carbon atoms. The organic semiconductors cannot show detection ability had been expected, but the new method to simulate aggregation structures of organic semiconductors were established during the material development. As their detection mechanism, it was unveiled that radiation ray is detected only at sections extremely near to a positive electrode.
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| Free Research Field |
有機半導体科学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で開発した有機半導体は期待した放射線検出能を示さなかったが，研究の過程で得られた放射線検出用の有機半導体および放射線検出のメカニズムに関する知見は，今後の放射線検出用有機半導体の分子設計やデバイス設計にとって有用である．また，得られた有機半導体の集合体構造のシミュレーション手法は，放射線検出以外の用途にとっても重要な高移動度の有機半導体を効率的に探索できるようになるため，有機エレクトロニクスの開発を大きく促進させる．
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