Energy Transfer from Photoexcited State of Water Soluble Hexa(Sulfobutyl)fullerene (C60((CH2)4SO3Na)6) |
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| Authors: | Toshifumi Konishi Mamoru Fujitsuka Hongxia Luo Yasuyuki Araki Osamu Ito Long Y Chiang |
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| Affiliation: |
a Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Aoba-ku, Sendai, Japan
b Department of Chemistry and Institute of Nanoscience Engineering, University of Massachusetts, Lowell, Massachusetts, USA |
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| Abstract: | Photophysical properties and reactivities of water-soluble micelle-like C60 derivative, C60((CH2)4SO3Na)6 (abbreviated as FC4S), at the excited triplet state were investigated using laser flash photolysis. A new transient absorption band appearing at ca. 700 nm was attributed to the triplet-triplet (T-T) absorption band of FC4S. This absorption was quenched by O2 via energy transfer forming singlet oxygen, which was confirmed by its luminescence emission band; the quantum yield was evaluated to be 0.36. |
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| Keywords: | Fullerene Triplet state Energy transfer Laser photolysis |
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