Elucidation of excitation energy transfer processes of metal-porphyrin compounds under a hydration condition

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K23622
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0501:Physical chemistry, functional solid state chemistry, organic chemistry, polymers, organic materials, biomolecular chemistry, and related fields
• 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)
• Project Period (FY): 2019-08-30 – 2021-03-31
• Keywords: 励起エネルギー移行 / 金属ポルフィリン化合物 / 水和作用 / 光アンテナ分子 / 人工光合成 / 液体分子線

Outline of Final Research Achievements

Resolving energy and environmental issues is a pressing task faced by humanity, in order to realize a sustainable society. Artificial photosynthesis has been studied as a solution of the energy and environmental issues. Metal-porphyrin compounds are expected as to be a light harvesting molecules for the artificial photosynthesis.
The end goal is to reveal the cooperative hydration effects to the transfer efficiency of the excitation energy for the metal-porphyrin compounds.
In the present implementation period, we improved a system of liquid jets which inject aqueous samples into the vacuum. The novel nozzle can highly suppress the temporal change of the aqueous samples during the experimental.

Free Research Field

原子分子物理学

Academic Significance and Societal Importance of the Research Achievements

当該研究期間で開発された液体分子線ノズルは, 真空環境下においても, 液体分子線試料の経時変化を小さく抑えることを可能にする. 当該液体分子線ノズルは, 水和金属ポルフィリン化合物の励起エネルギー移行効率を観測する上で不可欠である.
さらに, 水和金属ポルフィリン化合物のみならず様々な水溶液試料に対して, 真空環境下における実験的研究を行う上で, 液体分子線試料の経時変化の抑制が重要であることは明白である. 当該研究成果は, 更なる応用的研究の発展を促すと期待される.