Steady-state and picosecond studies of energy transfer between dyes with closely located S1-levels. Rhodamine-6G and 3,3'-diethylthiacarbocyanine iodide in acetone solution.
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概要
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Lasing wavelengths and fluorescence spectra were measured for a mixed dye system containing various concentrations of Rhodamine 6G (Rh-6G) and 3,3′-dietriylthiacarbocyanine iodide (DTC), which have very closely located S<SUB>1</SUB> levels, in acetone at room temperature. A new way of confirming the occurrence of energy transfer is presented on the basis of the reabsorption effect. It was found that most of the pump power absorbed by Rh-6G is transferred to DTC. A study of the fluorescence decay by a picosecond laser revealed that the energy transfer is essentially governed by the Förster mechanism. The observed fluorescence decay data agree fairly well with the <I>R</I><SUB>0</SUB> value of 73.2 Å calculated from the spectral overlap.
- 公益社団法人 日本化学会の論文
著者
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Kusumoto Yoshihumi
Chemical Institute, College of Liberal Arts, Kagoshima University
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Nakashima Nobuaki
Institute for Molecular Science
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Yahiro Shuichi
Chemical Institute, College of Liberal Arts, Kagoshima University
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Sato Hiroyasu
Chemistry Department of Resources, Faculty of Engineering, Mie University
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Sato Hiroyasu
Chemical Institute, College of Liberal Arts, Kagoshima University
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Maeno Kazuto
Chemical Institute, College of Liberal Arts, Kagoshima University
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