Phonon broadening of line widths of Auger-free luminescence in wide-gap ionic crystals

被引：7
|
作者：
Itoh, M
Sawada, K
Hara, H
Ohno, N
Kamada, M
机构：
[1] OSAKA ELECTROCOMMUN UNIV,FAC ENGN,NEYAGAWA,OSAKA 572,JAPAN
[2] INST MOL SCI,OKAZAKI,AICHI 444,JAPAN
来源：
JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷
关键词：
core luminescence; lattice relaxation; scintillators;
D O I：
10.1016/S0022-2313(96)00262-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Spectral shapes of the Auger-free luminescence in RbF, CsF, CsCl, CsBr and BaF2 have been studied in the temperature range between 10 and 300 K with use of a time-resolved technique. The significant contribution of phonon broadening to the line widths is verified for all systems, their temperature dependence being expressed well by the [coth(<(h)over bar omega>/2kT)](1/2)-law. This result is in accordance with the model describing the broadening due to lattice relaxation around a hole generated in the outermost-core bands.
引用
收藏
页码：762 / 764
页数：3
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