Photophysics on solid surface. Time-resolved fluorescence spectra of pyrene adsorbed on calcinated Vycor glass.
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概要
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The fluorescence, fluorescence excitation, and time-resolved fluorescence spectra of pyrene molecules adsorbed on calcinated (773 K) Vycor glass (average pore diameter, 40 Å) have been investigated as a function of the amount of adsorbed pyrene. The results of the analyses of these spectra and multi-component decays of fluorescence suggest that there are three fluorescent species with different decay times on the surface of Vycor glass. Their lifetimes are determined to be 303–355, 100–145, and 19–48 ns. These decay components are reasonably assigned to the emissions of monomeric, dimeric, and excimer-like species in the order of decreasing the lifetimes. A 26600 cm<SUP>−1</SUP> peak appearing at the first stage of the time-resolved fluorescence spectra is assingned to the 0–0 hand of dimeric pyrene based on the results reported by Yamazaki et al. in the Langmuir-Blodgett monolayer.
- 公益社団法人 日本化学会の論文
著者
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Fujii Tsuneo
Department Of Chemistry And Materials Engineering Faculty Of Engineering Shinshu University
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Anpo Masakazu
Department Of Applied Chemistry Colledge Of Engineering University Of Osaka Prefecture
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Ishii Akira
Department Of Angiology And Cardiology Kitasato University Graduate School Of Medical Sciences
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Suzuki Satoshi
Department Of Advanced Cardiac Therapeutics Fukushima Medical University
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Che Michel
Laboratoire de Reactivite de Surface et Structure, Universite P. et M. Curie
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Satozono Hiroshi
Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University
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Fujii Tsuneo
Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University
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