INVESTIGATION ON GROWTH AND PHYSICOCHEMICAL PROPERTIES OF L-HISTIDINE STANNOUS CHLORIDE (LSC) NONLIEAR OPTICAL CRYSTAL

Materials Science- Crystal Growth

Semiorganic nonlinear optical L-histidine stannous chloride (LSC) crystal has been synthesized for the first time. The LSC single crystals were grown from aqueous solution by slow evaporation technique at room temperature. The grown crystal was subjected to various characterizations. The grown LSC crystal was analyzed using Single crystal X-ray diffraction to identify the crystal system. From the calculated parameters, the LSNC crystal was found to be orthorhombic in structure. The grown crystal of LSC has good crystalline nature which was observed from Powder X-ray diffraction analysis. The vibration frequencies of the functional groups are identified by FTIR spectroscopic study. The highest emission peak from the PL spectrum was observed to be at 484 nm. Non linear optical property of the crystal was confirmed by SHG test using Kurtz Perry powder technique. Studies of dielectric properties like dielectric constant and dielectric loss as function of frequencies for varying temperatures has been carried out and the results suggested that LSC crystal is good candidates for electro optic modulators and frequency convertors. The work hardening coefficient value 1.27 which indicates moderately hard nature of material.

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