Intermediate Exciton-Phonon Coupling in Tetracene
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概要
- 論文の詳細を見る
Polarized absorption spectra of tetracene (naphthacene) single crystals havebeen investiuated between 300 and 13 K, with r>articular emrhasis on the b-polarized spectrum. The low energy tails of the a- and 6-polarized first absorptionbands are expressed by the Urbach rule with the steepness coefficients 0,=1.37:l.0.12, o;z 1.58 .[0.13, with which possibility of self-trapping of excitons is discussedalong with the dimensionality of tetracene crystals. The exciton-phonon couplingconstants are found to be y.=1.09f0.1 and y,=0.95f0.08, consistent withluminescence experiments which show that excitons in tetracene are self-trappedvery shallowly. The line halfwidth, the oscillator strength of the first and thesecond absorption bands, refractive indices, and surface exciton structure arebriefly discussed.
- 社団法人日本物理学会の論文
- 1984-08-15
著者
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MATSUI Atsuo
Department of Physics,Konan University
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Mizuno Kenichi
Department Of Physics Konan Univ.
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Sloan G
E.i. Du Pont De Nemours Co. Del
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Matsui Atsuo
Department Of Physics Faci4ty Of Science Kyoto University
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J SLOAN
CR D Dept.Experimental Station,E.I.Du Pont de Nemours Co.
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Mizuno Ken-ichi
Department Of Physics Konan University
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Matsui Atsuo
Department Of Physics Konan Univ.
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Sloan G.J.
CR D Dept.Experimental Station,E.I.Du Pont de Nemours Co.
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Mizuno Ken-ichi
Department of Material Science, Faculty of Science and Engineering, Shimane University
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