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.

引用

页码：177 / 181

页数：5

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