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Crystal Research and Technology |
Cryst. Res. Technol. 41, 771 (2006) - Abstract -
Growth and characterization of tris allylthiourea mercuric chloride crystals
R. Siddheswaran, R. Sankar*, M. Rathnakumari, R. Jayavel*, P. Murugakoothan**, and P. Sureshkumar
Materials Research Center, Department of Physics, Velammal Engineering College, Chennai - 600 066, India
*Crystal Growth Center, Anna University, Chennai - 600 025, India
**Department of Physics, Pachaiyappa’s College, Chennai - 600 030, India
Single crystals of tris allylthiourea mercury chloride (ATMC), a semi-organic nonlinear optical material, have been grown from a low-temperature solution growth technique by slow cooling method. In the present work, we have grown ATMC crystal which is a new nonlinear optical material (NLO) having high optical quality and its second harmonic generation (SHG) efficiency is thrice that of Urea. The grown crystals have also been subjected to various characterization studies like X-ray diffraction, UV-VIS, FT-IR and TGA-DTA. X-ray powder diffraction study confirmed the crystal structure of ATMC, UV-VIS /FT-IR spectral analysis showed the crystal has good optical transmission in the entire visible region and TGA-DTA studies showed the thermal properties and complex degradation of ATMC crystal.
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