Fluorescence lifetime and quantum yield of diphenylketyl radical at low temperature |
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| Authors: | Kinichi Obi Hiroshi Yamaguchi |
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| Institution: | Department of Chemistry, Tokyo Institute of Technology, Ohokayama, Meguroku, Tokyo, Japan |
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| Abstract: | The fluorescence lifetimes of the diphenylketyl radical trapped in ethanol and EPA matrices are 16.8 ± 0.5 and 21.1 ± 0.6 ns, respectively in the temperature region of 77–130 K. The fluorescence quantum yield in ethanol matrix is 0.16 ± 0.6. These values are consistent with the radiative lifetime calculated from the absorption spectrum. |
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