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A comparative study of pure and potassium doped cadmium mercury thiocyanate single crystals grown in silica gel
Author(s) -
Kumari P. Nisha Santha,
Margaret M. Beatrice,
Kalainathan S.
Publication year - 2009
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.200800241
Subject(s) - tetragonal crystal system , doping , materials science , analytical chemistry (journal) , potassium thiocyanate , vickers hardness test , crystal (programming language) , indentation hardness , fourier transform infrared spectroscopy , crystallography , thiocyanate , chemistry , crystal structure , inorganic chemistry , microstructure , chemical engineering , chromatography , optoelectronics , computer science , programming language , engineering
Abstract Pure and potassium doped cadmium mercury thiocyanate single crystals have been obtained from silica gel by the process of diffusion. The X‐ray diffraction studies reveal the crystal lattice of both pure and doped crystals to be tetragonal. The crystalline perfection of the grown crystals were investigated by high resolution X‐ray diffraction analysis and the quality of the crystals are found to be extremely good. Transmission and Fourier transform infrared spectra were recorded for the grown crystals. The TG/DTA analyses show that the crystals are highly thermally stable. The mechanical strength of the crystals were studied by Vickers microhardness test and a study of their second harmonic generation efficiency in comparison with urea has been made by performing Kurtz powder test. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)