Growth and properties of urea-doped triglycine sulfate (UrTGS) crystals

被引：24
|
作者：
Chang, JM [1 ]
Batra, AK [1 ]
Lal, RB [1 ]
机构：
[1] ALABAMA A&M UNIV,DEPT PHYS,NORMAL,AL 35762
来源：
JOURNAL OF CRYSTAL GROWTH | 1996年 / 158卷 / 03期
关键词：
D O I：
10.1016/0022-0248(95)00448-3
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
This paper discusses the growth and properties of triglycine sulfate (TGS) crystals doped with urea. It was found that the normalized growth yield and pyroelectric and dielectric constants could be increased significantly by urea additions. TGS crystals doped with 5 and 10 wt% urea exhibited up to five times higher material figures of merit for infrared pyroelectric detectors compared with undoped TGS crystals. The Vickers hardness of doped crystals increased with urea content to about three times the undoped value in the [010] direction at 10 wt% urea. No significant increase in the hardness was found, however, in the [001] direction. Incorporation of urea in TGS crystals has been qualitatively estimated by Fourier transform infrared (FTIR) data.
引用
收藏
页码：284 / 288
页数：5
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