Time-Resolved Excitonic Luminescence Processes in Poly (phenylenevinylene)
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概要
- 論文の詳細を見る
Integrated luminescence spectra, time-resolved luminescence spectra, andluminescence decay times of stretch-oriented poly(phenylenevinylene) (PPV) arestudied in the temperature range 300 - 12 K. The reflectance spectrum at room temper-ature is also studied. The luminescence spectrum is composed of vibronic bands and abroad band, which are interpreted as caused by radiative annihilation of free and self-trapped excitons, respectively. Temperature dependence of the intensity of free-ex-citon luminescence and temperature dependence of the decay time are interpreted interms of relaxation of excitons. The height of a potential barrier, which separates thefree exciton state and the self-trapped state, is found to be 350 cm '. At 20 K, excitonrelaxation toward the self-trapped state occurs by a quantum-mechanical tunnelingprocess. The tunneling rate obtained is (90 ps) '.poly(phenylenevinylene), polaron, exciton-phonon interaction, self-trapping,tunneling rate, luminescence
- 社団法人日本物理学会の論文
- 1989-08-15
著者
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S.d.d.v. Rughooputh
Institute For Polymers And Organic Solids University Of California
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W.c. Walker
Physics Department University Of California
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MIZUNO Kiyoshi
Department of physics,Tokyo Metropolitan University
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FURUKAWA Mitsuhiro
Department of Physics,Konan University
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MIZUNO Ken-ichi
Department of Physics,Konan University
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MATSUI Atsuo
Department of Physics,Konan University
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Mizuno K
Defence Evaluation And Res. Agency Malvern Worcestershire Gbr
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Mizuno K
Department Of Material Science Faculty Of Science And Engineering Shimane University
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Mizuno Kiyoshi
Faculty Of Integrated Arts And Science Tokushima University
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Matsui A
Konan Univ. Kobe
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Matsui Atsuo
Department Of Physics Faci4ty Of Science Kyoto University
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FURUKAWA Mitsuhiro
Matsushita Electric Co.,Ltd.
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Furukawa M
Konan Univ. Kobe
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Furukawa Mitsuhiro
Department Of Physics Konan University:matsushita Electric Co. Ltd.
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Mizuno Ken-ichi
Department Of Physics Konan University
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Mizuno Ken-ichi
Department of Material Science, Faculty of Science and Engineering, Shimane University
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