Coupling Between Electrons and Molecular Vibrations of an Anthracene Single Molecule in a Cyclodextrin(Atomic and Molecular Physics)
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概要
- 論文の詳細を見る
Optical studies of a single anthracene molecule succeeded by using a β-cyclodextrin (CyD) as an isolating cage. The absorption and the fluorescence spectra consist of several vibronic lines with 0.174-0.178eV intervals and are mirror image with each other. In addition, their line shapes vary scarcely between RT and 2 K. These facts indicate that the anthracene molecule is almost free in the β-CyD cage. These spectra are theoretically analyzed by a free-molecule-model in which the electronic excited state couples with the vibrations hw of the molecule with coupling strength s (Haung Rhys factor). Observed spectra are in good agreement with theoretical ones with s = 1.56 and hw = 0.178eV. For the single crystal of anthracene, absorption and fluorescence were also measured. At 2 K, the zero-phonon peak becomes enhanced and the phonon lines becomes sharpened compared with the single molecule case. But at RT, the fluorescence spectrum becomes quite diffused shape. These facts suggest that the exciton can move among anthracene molecules at low temperatures. It falls into a trapped state at RT.
- 社団法人日本物理学会の論文
- 2004-11-15
著者
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Kasuya Atsuo
Center for Interdisciplinary Research, Tohoku University
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Takahashi Yoshio
Department Of Cardiology Mie University Graduate School Of Medicine
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NAGASAKA Shin-ichiro
Department of Physics, Faculty of Science, Yamagata University
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YOSHINARI Takehisa
Department of Physics, Faculty of Science, Yamagata University
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Goto T
Institute For Materials Research Tohoku University
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Kasuya A
Center For Interdisciplinary Research Tohoku University
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Kasuya Atsuo
Institute Of Materials Resesrch Tohoku University
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Kasuya Atsuo
Center For Interdisciplinary Research Tohoku University
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Goto Tetsuya
Plasma Research Center University Of Tsukuba
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Gotoh Takayuki
Institute For Materials Research Tohoku University
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Goto Takayuki
Department Of Physics Faculty Of Science University Of Tokyo
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Goto T
Nagoya Inst. Technol. Nagoya Jpn
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Goto Takao
Graduate School Of Human And Environmental Studies Kyoto University
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Goto T
Graduate School Of Human And Environmental Studies Kyoto University
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Goto T
Institute For Solid State Physics University Of Tokyo
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Goto T
Univ. Tokyo Tokyo Jpn
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Goto T
Univ. Tokyo Chiba
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Goto Tsuneaki
Institute For Solid State Physics University
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Goto T
Institute For Solid State Physics The University Of Tokyo
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Goko T
Institute For Solid State Physics University Of Tokyo
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Goto Tsuneaki
The Institute Of Solid State Physics Tokyo University
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NAKATSUBO Takeshi
Department of Physics, Faculty of Science, Yamagata University
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YAMAMOTO Aishi
Physics Department, Graduate School of Science, Tohoku University
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GOTO Takenari
Organo-Optic Research Laboratory
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Yoshinari Takehisa
Department Of Physics Faculty Of Science Yamagata University
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Yoshinari Takehisa
Department Of Physics Faculty Of Science Tohoku University
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Goto Takao
Graduate School Fo Human And Environmental Studies Kyoto University
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Nakatsubo Takeshi
Department Of Physics Faculty Of Science Yamagata University
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Yoshinari T
Department Of Physics Faculty Of Science Yamagata University
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Nagasaka S
Department Of Physics Faculty Of Science Yamagata University
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Nagasaka Shin-ichiro
Department Of Physics Faculty Of Science Yamagata University
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Goto T
新潟大院自然
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Takahashi Yoshio
Department Of Agricultural Chemistry The University Of Tokyo
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