Crystal growth, optical, mechanical and electrical properties of organic NLO material γ-glycine

被引：83
|
作者：
Ambujam, K.
Selvakumar, S.
Anand, A. Prem
Mohamed, G.
Sagayaraj, P. [1 ]
机构：
[1] Loyola Coll, Dept Phys, Madras 600034, Tamil Nadu, India
[2] Queen Marys Coll Autonomous, Dept Phys, Madras 600004, Tamil Nadu, India
[3] New Coll, Dept Phys, Madras 600014, Tamil Nadu, India
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 2006年 / 41卷 / 07期
关键词：
gel growth; NLO; single crystals; transmittance; microhardness; dielectric constant; TG; DTA; negative photoconductivity;
D O I：
10.1002/crat.200510647
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Single crystals of organic non-linear optical material, gamma-glycine have been grown by gel method for the first time. The gamma - phase is confirmed by single crystal XRD. The presence of various functional groups of gamma-glycine are confirmed by FTIR. The UV-Vis-NIR spectrum reveals the high percentage of transmission of the sample in the entire visible region. The SHG of gamma-glycine is confirmed by Kurtz powder technique. TGA-DTA studies indicate that the crystal is structurally stable upto 170 degrees C. Microhardness investigations are conducted on the grown crystals. The dielectric constant measurements are carried out and the nature of variation of dielectric constant epsilon' and dielectric loss D in the frequency range of 50 Hz to 5 MHz is studied and reported. Photoconductivity studies of gamma-glycine crystals revealed the negative photoconducting nature. (C) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：671 / 677
页数：7
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