Role of intrinsic defects and impurities in forming the optical characteristics of ZnWO4 and CdWO4 crystals

被引：6
|
作者：
L. N. Limarenko
Yu. V. Zorenko
M. M. Batenchuk
Z. T. Moroz
M. V. Pashkovskii
I. V. Konstankevich
机构：
[1] Ivan Franko Lvov State University,
[2] Institute of Applied Physics of Ivan Franko Lvov State University,undefined
来源：
Journal of Applied Spectroscopy | 2000年 / 67卷 / 2期
关键词：
absorption; impurity; defect; vacancy; tungstates; scintillators;
D O I：
10.1007/BF02681848
中图分类号：
学科分类号：
摘要：
We analyze the optical characteristics of crystals within the framework of a model representation that presupposes the entry of the background impurity of iron ions in two valence states, Fe3+ and Fe2+, into regular lattice nodes. The spectral manifestation of intrinsic defects of vacancy-type structure depending on the conditions of crystal growth and heat treatment is comprehensively investigated. With allowance for the specific features of the technology applied, we have tested the technique suggested in scientific periodicals for bleaching ZnWO4 and CdWO4 crystals by doping with nonisovalent ions, in particular, with Sb and Ag impurities.
引用
收藏
页码：287 / 294
页数：7
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