2023 Fiscal Year Final Research Report
Mechanism of singlet fission and triplet fusion in nano materials
Project/Area Number |
20K05416
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 32010:Fundamental physical chemistry-related
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Research Institution | Saitama University |
Principal Investigator |
yago tomoaki 埼玉大学, 理工学研究科, 准教授 (30451735)
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | 励起子分裂 / ナノ構造 / 遅延蛍光 / 磁場効果 / 三重項対 |
Outline of Final Research Achievements |
We prepared microparticles by the reprecipitation method and measured delayed fluorescence to evaluate the efficiency of singlet fission. It was found that the singlet fission behavior is not significantly different from that of ordinary crystals when the particle size is on the order of several hundred nanometers. However, the efficiency of singlet fission is reduced for the particles prepared by the reprecipitation method due to defects.
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Free Research Field |
物理化学
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Academic Significance and Societal Importance of the Research Achievements |
微粒子サイズが数百ナノメートルオーダーの場合、励起状態ダイナミクスは普通の有機結晶での励起状態ダイナミクスと大きく変わらないことが分かった。このことから、普通の結晶の測定から得られた励起状態ダイナミクスは、微小サイズの材料にそのまま適用できることが明らかとなった。このことは、励起子分裂を利用したデバイス開発において重要な知見となったと考えている。
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