Chemical nature of the luminescent centre in fresh and aged porous silicon layers

被引：11
|
作者：
Gardelis, S
Bangert, U
Hamilton, B
Pettifer, RF
Hill, DA
Keyse, R
Teehan, D
机构：
[1] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT PHYS,MANCHESTER M60 1QD,LANCS,ENGLAND
[2] UNIV LIVERPOOL,DEPT MAT SCI & ENGN,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[3] DRAL,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND
来源：
APPLIED SURFACE SCIENCE | 1996年 / 102卷
关键词：
D O I：
10.1016/0169-4332(96)00088-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study we have used high resolution parallel electron energy loss spectroscopy (PEELS) and X-ray excited optical luminescence (XEOL) to investigate the chemical nature of the luminescence centre in fresh and aged porous silicon. Wt find that regardless of the non-stoichiometric oxides which were observed by PEELS in our fresh porous silicon layers Si-Si bonded material is involved in the luminescence process. However, in the case of aged porous silicon both Si-Si and Si-O bonded material are involved.
引用
收藏
页码：408 / 412
页数：5
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