TITLE:
Growth and Characterization of a New Semi-Organic Nonlinear Optical Crystal: Thiosemicarbazide Cadmium Acetate
AUTHORS:
K. Selvaraju, K. Kirubavathi, S. Kumararaman
KEYWORDS:
Growth from solution; Semiorganic; Nonlinear optical crystal
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.11 No.3,
March
20,
2012
ABSTRACT: A new semi-organic nonlinear optical thiosemicarbazide cadmium acetate (TSCA) material has been synthesized. TSCA single crystals were grown from aqueous solution by slow evaporation method. The solubility of TSCA has been determined for various temperatures. The grown crystals were characterized by single crystal X-ray diffraction (XRD), FTIR, UV-Vis., thermal and second harmonic generation (SHG) analysis. Single crystal XRD study has been carried out to identify the lattice parameters. FTIR studies confirm the functional groups present in the grown crystal. Optical transmission studies have confirmed that the grown crystal is highly transparent. Thermogravimetric and differential thermal analyses reveal the good thermal stability of the material. The SHG conversion efficiency of TSCA was determined using Kurtz powder technique and found two times that of potassium dihydrogen orthophosphate (KDP).