Photoluminescence excitation spectra of CuInS2 crystals

被引：31
|
作者：
Wakita, K [1 ]
Fujita, F [1 ]
Yamamoto, N [1 ]
机构：
[1] Univ Osaka Prefecture, Grad Sch Engn, Dept Phys & Elect, Osaka 5998531, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2001年 / 90卷 / 03期
关键词：
D O I：
10.1063/1.1383582
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The photoluminescence excitation (PLE) spectra of CuInS2 crystals grown by the traveling heater method (THM) and the iodine vapor transport method (IT) have been examined. THM crystals show significant structure with many peaks and dips in the PLE spectra, whereas IT crystals exhibits two clear peaks at two free exciton energies in the spectrum. The peak and dip structures of PLE spectra at the free exciton energy depend on the monitoring PL peak, the kind of crystals, and temperatures. A proposed relaxation process of excited electron-hole pairs explains peak and dip structures of PLE spectra at the free exciton energies. (C) 2001 American Institute of Physics.
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收藏
页码：1292 / 1296
页数：5
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