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Growth and Characterization of a Non Linear Optical Crystal - Bis Thiourea Cadmium Chloride

G.Pabitha, R.Dhanasekaran

Bulk crystal of bis thiourea cadmium chloride (BTCC) was grown by the solvent evaporation method and slow cooling method. The crystal structure was confirmed using single crystal XRD studies. The presence of thiourea in the complex and the metal-sulphur bond has been confirmed from the FTIR and Raman spectra. The thermal analysis shows the good stability of the crystal up to 211oC. The crystal was found to show an SHG efficiency of twice that of KDP. The surface analysis of the grown crystal was studied using AFM studies and the results are discussed in detail.