THE PHOTOSTIMULATED REORIENTATION OF COLOR-CENTERS IN SILICATE-GLASSES

被引：2

作者：

GLEBOV, LB

DOKUCHAEV, VG

PETROV, MA

机构：

[1] State Optical Institute, Leningrad

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 123卷 / 1-3期

关键词：

D O I：

10.1016/0022-3093(90)90789-O

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：

The effect of optical radiation with photon energy smaller than the energy gap of the glass on color centers in soda silicate glasses is investigated. It is found that there is delocalization of holes from the defects due to light exciting hole centers. It is shown that at the initial stages of the light excitation delocalized holes migrate and are trapped at defects of the same type. The distribution through orientations of anisotropic centers generated under light irradiation differs from the original distribution of color centers in glass. The process is reorientation of color centers. In the final stages of photoexcitation of color centers the migration of holes leads to recombination with electron color centers and bleaching. © 1990.

引用

页码：234 / 239

页数：6