Estimation of Non-Radiative Transition Rate in Tetracene-Doped Anthracene by Photoacoustic Spectroscopy : Chemistry (incl. physical process)
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概要
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In order to investigate the impurity effect on non-radiative transition, we measured photoluminescence (PL), photoluminescence excitation (PLE) and photoacoustic (PA) spectra of tetracene-doped anthracene molecular crystals. We considered three radiative and non-radiative transitions to set up rate equations; from the anthracene exciton band to the ground state, from the anthracene exciton band to the tetracene impurity level and from the tetracene impurity level to the ground state. It was clarified from the results that the luminescence quantum efficiency due to anthracene decreases with increasing impurity concentration. Decrease of the quantum efficiency was discussed in terms of the change in transition matrix element.
- 社団法人応用物理学会の論文
- 1988-05-20
著者
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ARAI Toshihiro
Institute of Applied Physics, The University of Tsukuba
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UMEZU Ikurou
Institute of Applied Physics, The University of Tsukuba
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OGAWA Tsutomu
Institute for Applied Optics
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Ogawa Tsutomu
Institute Of Applied Physics University Of Tsukuba
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Arai Toshihiro
Institute For Optical Research Kyoiku University
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Umezu I
Department Of Applied Physics Konan University:hightechnology Research Center Konan University
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Umezu Ikurou
Institute Of Applied Physics The University Of Tsukuba
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Umezu Ikurou
Institute Of Applied Physics University Of Tsukuba
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Arai Toshihiro
Institte For Optical Research Kyoiku University
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