Investigation on optical, thermal, dielectric and mechanical properties of antimony potassium tartrate on L-alanine single crystals

Antimony potassium tartrate l-alanine potassium chloride single crystals have been grown by slow evaporation solution growth technique. The cell parameters were estimated from single crystal X-ray diffraction analysis and it was found that the material crystallizes in orthorhombic symmetry. The powder X-ray analysis proved its crystalline nature without the formation of secondary phases. The presence of functional groups and the nature of bonds appearing in the material were identified by FTIR spectroscopy. Optical constants were estimated by UV-Vis spectrum and the lower cut off wavelength was observed at 265 nm. Photoluminescence emission spectrum show violet band through a strong peak centered at 419.96 nm. The scanning electron microscope analysis has been carried out to determine the surface morphology of the grown crystal. Energy dispersive spectrum was done to identify the composition of elements present in the title material. The second harmonic generation efficiency of the sample was confirmed and measured by Kurtz powder technique which reveals that the conversion efficiency was found to be 0.437 times that of KDP. The thermal, dielectric and mechanical studies were carried out for the title material. The obtained results show that antimony potassium tartrate l-alanine crystals are potential materials in NLO device applications.