Crystallization and optical properties of CaWO4 and SrWO4

被引：43

作者：

Arora, S. K. ^{[1
]}

Chudasama, B. ^{[1
]}

机构：

[1] Sardar Patel Univ, Dept Phys, Vallabh Vidyanagar 388120, Gujarat, India

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 2006年 / 41卷 / 11期

关键词：

growth from high temperature solutions; tungstates; lasers and scintillators;

D O I：

10.1002/crat.200610727

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals of calcium tungstate and strontium tungstate have been grown by double decomposition flux reaction technique using lithium chloride as flux. Growth conditions are optimized to synthesize well faceted crystals. Effect of primary and secondary flux density in the growth charge has been studied. Thermogravimetric study reveals that the grown crystals are highly stable in the temperature range 25 - 1000 degrees C. Analysis of optical absorption normal to the ab-plane in the spectral range of 200 - 800 nm reveals the true absorption edge, the nature of transition being the allowed indirect one at 4.60 eV and 4.56 eV respectively for CaWO4 and SrWO4. The crystals have been characterized by determining useful pertinent optical and dielectric parameters. (C) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1089 / 1095

页数：7

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