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Growth and characterization of a new potential second harmonic generation material from the amino acid family: L‐Valinium picrate
Author(s) -
Martin Britto Dhas S. A.,
Natarajan S.
Publication year - 2008
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.200711152
Subject(s) - picrate , second harmonic generation , fourier transform infrared spectroscopy , chemistry , energy conversion efficiency , analytical chemistry (journal) , evaporation , infrared , crystal (programming language) , characterization (materials science) , single crystal , fourier transform , absorption spectroscopy , infrared spectroscopy , dielectric , crystallography , materials science , optics , nanotechnology , organic chemistry , ion , optoelectronics , thermodynamics , physics , laser , computer science , programming language , quantum mechanics
L‐Valinium picrate (C 5 H 12 NO 2 ) + . (C 6 H 2 N 3 O 7 ) – , a non‐linear optical material from the amino acid family which has large second harmonic generation (SHG) efficiency, was grown by slow evaporation method. Characterization of the crystals was made using single crystal X‐ray diffraction. The functional groups and the modes of vibrations were found by using the Fourier transform infrared (FTIR) spectroscopy. The second harmonic generation (SHG) conversion efficiency was investigated using the Kurtz and Perry method. The SHG conversion efficiency is 60 times higher than that of the standard KDP and 8 times higher than that of the standard Urea and the optical transparency was analyzed using UV‐visible‐NIR absorption spectrum. The structural features of the material leading to the large SHG efficiency are discussed. Microhardness and dielectric studies were also carried out. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)