Relaxation Processes of Free Excitons in KBr:Na
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概要
- 論文の詳細を見る
Excitation spectra of luminescence due to Na tons in KBr:Na crystals havebeen investigated in detail at LlIeT by varying the Na content. Quantum efficiencyof the luminescence shows the characteristic change according as the excitingenergy is above or below the peak energy of the first exciton band (E.- or E.-excitation). Two different processes arc suggested for the relaxation of the freeexciton. Excitons created by f.-excitation have much longer lifetime than thosecreated by E.-excitation. The diffusion length of the exciton produced underf)-excitation is estimated to be nearly 17 lattice distance (IIOA), while thediffusion length of exciton produced under .ZlJ.-excitation is very small.
- 社団法人日本物理学会の論文
- 1983-09-15
著者
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NAKAMURA Kaizo
Department of Physics,Faculty of Science,Okayama University
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NAKAI Yoshio
Department of Physics,Kyoto University
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TOYODA Koichi
Department of Physics, Faculty of Science, Tokai University
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Nakai Yoshio
Department Of Physics Kyoto University
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Nakai Yoshio
Department Of Physics Faculty Of Science Kyoto University
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Toyoda Koichi
Department Of Physics Osaka Dental University
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Nakamura Kaizo
Department Of Physics Faci4ty Of Science Kyoto University
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Nakai Yoshio
Department Of Physics Faculty Of Scicncc Kyoto University
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Toyoda Koichi
Department Of Applied Electronics Faculty Of Industrial Science & Technology Science University
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Nakamura Kaizo
Department of Physics,Kyoto University
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