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Nucleation, growth and characterization studies of a nonlinear optical crystal – tris allylthiourea cadmium chloride (ATCC)

The nonlinear optical crystals of tris allylthiourea cadmium chloride have been grown by temperature lowering solution growth technique. Solubility of ATCC has been determined for various temperatures. Meta stable zone width and induction period values have been determined in order to optimize the growth parameters. Nucleation parameters such as Interfacial tension, critical radius and the free energy of formation of critical nucleus have been evaluated. The as grown crystals were characterized by the powder X-ray diffraction, UV-VIS absorption and transmittance, FT-IR absorption, TGA-DTA, Dielectric and micro hardness studies.