2022 Fiscal Year Final Research Report
Cooperative hydration effects for the transfer efficiency of the excitation energy in a metalloporphyrin polymer
Project/Area Number |
20K14427
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
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Research Institution | Tokyo University of Agriculture and Technology |
Principal Investigator |
Kumagai Yoshiaki 東京農工大学, 工学(系)研究科(研究院), 助教 (60842739)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 励起エネルギー移行 / 金属ポルフィリン多量体 / 協働作用 / 水和環境 / 光アンテナ分子 / 人工光合成 / 時分割計測 / 液体分子線 |
Outline of Final Research Achievements |
Aqueous solution is the one of ideal systems for artificial photosynthesis and photovoltaics. However, the solvent interaction causes deviations of electronic states as well as isomerizations for solute molecules, which complicate energy transfer processes of the excitation molecules. The final goal of this study is to elucidate the cooperative hydration effects for the transfer efficiency of the excitation energy in a metalloporphyrin polymer by the time-resolved Auger electron spectroscopy with soft-x-ray lasers. In the present implementation period, we have improved the energy resolution of the photoelectron spectroscopy with the soft x-rays for aqueous solutions. And we conducted the time-resolved measurement for organic molecule in the gas phase by using the soft-x-ray lasers.
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Free Research Field |
原子分子物理学
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Academic Significance and Societal Importance of the Research Achievements |
水溶液試料に対する軟X線レーザーを用いた時分割オージェ電子分光法に不可欠な基幹技術が当該研究において確立された. すなわち, 液相状態を保ったまま溶液試料を真空実験槽導入する液体分子線技術, 溶液試料に対する軟X線光電子分光、軟X線レーザーを用いた時分割計測技術等である. これらの技術を組み合わせることで, 多様な溶液試料における溶質分子の過渡状態の観測が可能になると期待される. 以上より, 当該成果は多様な基礎研究分野を刺激すると期待される. さらに, 励起エネルギー移行過程に対する水和作用の寄与が明らかになれば, 多様な光エレクトロニクスデバイスの創出・性能向上を促すと期待される.
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