THE EFFECT OF GAMMA-IRRADIATION DOSES IN THE OPTICAL BAND-GAP OF K2ZNCL4 SINGLE-CRYSTALS

被引：4

作者：

ELKORASHY, A

机构：

[1] Physics Department, Assiut University, Assiut

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1994年 / 132卷 / 01期

关键词：

D O I：

10.1080/10420159408219259

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The absorption coefficient (alpha) was obtained for different gamma-doses. The analysis of the data revealed the existence of optical allowed direct transition from E(gd) = 5.82 to 6.03 eV for an increase of the radiation doses from 1 M rad to 10 M rad. An absorption band appears at similar to 310 nm., shifted towards the short wavelength as the doses increase. This band could be related to electrons or holes trapped at lattice defects and associated with a growth of colour centres.

引用

页码：75 / 80

页数：6

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