Identity of Self-Trapped Exciton Configurations for the π Emission of NaI and the σ Emission of KI
スポンサーリンク
概要
- 論文の詳細を見る
The interrelation between the intrinsic emission bands of Nal and Kl has beenexamined by observing changes of luminescence spectra and their decay profiles inmixed Na. .K.I crystals at 10 K. As x is increased from 0 to 1 , the 7J emission band ofNal changes continuously into the o emission band of Kl. Furthermore, the decaycomponent with a long lifetime ( - 100 ns) diminishes, while the component with ashort lifetime ( - 1.0 ns) intensifies. An emission band changing into the n band of Klappears above x= 0.95. Itis concluded that the self-trapped exciton (STE) responsiblefor the n band of Nal corresponds to that for the o band, rather than the n band, ofKl. Lattice configurations of initial states for these emission bands are briefly dis-cussed in connection with the recent off-center model of the STE.[photoluminescence,synchrotron radiation,Nal,Kl,mixed crystal,exciton relax- ]l ation, self-trapped exciton, adiabatic instabilityl
- 社団法人日本物理学会の論文
- 1991-01-15
著者
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Kanno K
Department Of Material Science And Chemistry Wakayamna University
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HASHIMOTO Satoshi
Kyoto University of Education
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Ohno N
Waseda Univ. Tokyo
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Ohno Nobuhito
Osaka Electro-communication University
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Hashimoto S
Osaka Women's Univ. Osaka
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ITOH Minoru
Shinshu University
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Kan'no Ken-ichi
Department Of Physics Faculty Of Science Kyoto University
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Ohno Nobuhito
Department of Materials Science,Faculty of Engineering,Osaka Electro-Communication University
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KAN'NO Ken-ichi
Department of Material Science and Chemistry, Wakayamna University
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