ULTRALOW VALUES OF THE ABSORPTION-COEFFICIENT OF SI OBTAINED FROM LUMINESCENCE

被引：98
|
作者：
DAUB, E
WURFEL, P
机构：
[1] Institut für Angewandte Physik, Universität Karlsruhe
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.74.1020
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Photoluminescence spectra were measured on homogeneously doped silicon at temperatures of 90 and 295 K. By using the generalized Planck law for the emission of luminescence by indirect transitions, values for the absorption coefficient as small as 10-16 cm-1 have been obtained for photon energies well below the band gap. At higher photon energies, where absorption coefficients can be obtained from transmission, good agreement with literature data is observed. © 1995 The American Physical Society.
引用
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页码：1020 / 1023
页数：4
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