Absorption and Luminescence of (Br^-)_2-Centers in NaCl:Br
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概要
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Luminescence due to Br^--ions in NaCl has been investigated at liquid nitrogen temperature by varying the amount of Br^--ions from 1×10^<-3> to 1.4×10^<-2> mole fraction. Two emission bands, having their maxima at about 4.0 eV and 5.15 eV, were observed with UV-light excitation. The 4.0 eV luminescence is known to enhance linearly with increasing Br^--ion concentration. Ratio of the intensity of the 5.15 ev luminescence to that of the 4.0 eV luminescence was found to vary in proportion to the Br^--ion concentration, suggesting that the intensity of the 5.15 eV luminescence varies with square of Br^--ions concentration. This means that the 5.15 eV luminescence is caused by (Br^-)_2-center. Presence of the absorption band of (Br^-)_2-center was also confirmed in the low energy side of the absorption band due to Br^--ion monomer.
- 社団法人日本物理学会の論文
- 1972-04-05
著者
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Itoh Minoru
Department Of Animal Husbandry Faculty Of Agriculture Tohoku University:(present Adress) National In
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Nakai Yoshio
Department Of Physics Kyoto University
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Nakagawa Hideyuki
Department Of Anesthesiology Saitama International Medical Center Saitama Medical University
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Nakai Yoshio
Department Of Physics Faculty Of Scicncc Kyoto University
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Nakagawa Hideyuki
Department Of Physics Kyoto University
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Itoh Minoru
Department Of Physics Kyoto University
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