TIME-RESOLVED PHOTOLUMINESCENCE SPECTRA OF POROUS SI

被引：0
作者：
FEI, HS
HAN, L
CHE, YL
NIE, RJ
LI, TJ
机构：
[1] JILIN UNIV,DEPT PHYS,CHANGCHUN 130023,PEOPLES R CHINA
[2] JILIN UNIV,DEPT CHEM,CHANGCHUN 130023,PEOPLES R CHINA
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 1995年 / 11卷 / 01期
关键词：
POROUS SI; TIME-RESOLVED SPECTRA; NANOCRYSTAL; PHOTOLUMINESCENCE;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The photoluminescence spectra of porous Si have been studied. Its time-resolved luminescence spectra show a red shift of luminescence peak with increasing delay time after exciting and a nonexponential decay. Several spectral bands with different Gaussian center appear by means of the decomposition of a spectrum. The results of our experiments show quantum confined characters in porous Si, and we speculate that the short wavelength band at 465 nm is the direct band from GAMMA15 to GAMMA'25.
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页码：58 / 63
页数：6
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