Optical transmission of ZnSe crystals grown by solid phase recrystallization

被引:19
作者
Rzepka, E
Roger, JP
Lemasson, P
Triboulet, R
机构
[1] CNRS, Lab Phys Solides Bellevue, F-92195 Meudon, France
[2] Ecole Super Phys & Chim Ind, Lab Opt Phys, F-75231 Paris, France
关键词
ZnSe; optical transmission; grain boundary; light scattering;
D O I
10.1016/S0022-0248(98)00773-8
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Solid phase recrystallization of CVD grown ZnSe polycrystals is achieved using thermal treatments involving different stoichiometric conditions. Relevant color changes of the crystals appear after thermal treatment and/or doping. Thr: optical transmission is measured in the visible and near IR range. Contributions to the color changes are interpreted as due to structural modifications by using light scattering theory. On the other hand; a new absorption band appearing in the near IR at 0.85 eV seems to be correlated with native point defects associated with deviation from stoichiometry induced by thermal treatment. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:480 / 484
页数:5
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