Photoinduced optical changes in amorphous Se and Ge-Se films

被引：29
|
作者：
Tichy, L [1 ]
Ticha, H
Nagels, P
Callaerts, R
机构：
[1] Acad Sci Czech Republ, Joint Lab Solid State Chem, Pardubice 53009, Czech Republic
[2] Univ Pardubice, Pardubice 53009, Czech Republic
[3] Univ Pardubice, Pardubice 53210, Czech Republic
[4] Univ Antwerp, Rijksuniv Ctr Antwerp, B-2020 Antwerp, Belgium
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1998年 / 240卷 / 1-3期
关键词：
D O I：
10.1016/S0022-3093(98)00716-9
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Films of amorphous Se, Ge15Se85, and Ge25Se75 were prepared by thermal evaporation. Measurements of photodarkening at 78 K showed that the optical gap (E-g) and the slope of optical absorption edge (B) are intercorrelated. The correlation between the photoinduced changes of E-g and B is discussed within both the: model of Davis and Mott and Tauc's model for optical transitions in amorphous solids. (C) 1998 Elsevier Science B.V. All rights reserved.
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收藏
页码：177 / 181
页数：5
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