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Crystal growth, optical, mechanical and electrical properties of organic NLO material γ‐glycine
Author(s) -
Ambujam K.,
Selvakumar S.,
Prem Anand D.,
Mohamed G.,
Sagayaraj P.
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200510647
Subject(s) - dielectric , crystal (programming language) , glycine , analytical chemistry (journal) , materials science , fourier transform infrared spectroscopy , photoconductivity , single crystal , dielectric loss , indentation hardness , crystallography , chemistry , optics , microstructure , optoelectronics , organic chemistry , physics , biochemistry , amino acid , computer science , programming language
Single crystals of organic non‐linear optical material, γ‐glycine have been grown by gel method for the first time. The γ‐phase is confirmed by single crystal XRD. The presence of various functional groups of γ‐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 γ‐glycine is confirmed by Kurtz powder technique. TGA‐DTA studies indicate that the crystal is structurally stable upto 170 °C. Microhardness investigations are conducted on the grown crystals. The dielectric constant measurements are carried out and the nature of variation of dielectric constant ε′ and dielectric loss D in the frequency range of 50 Hz to 5 MHz is studied and reported. Photoconductivity studies of γ‐glycine crystals revealed the negative photoconducting nature. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)