Growth and photoluminescence study of nickel sulfate doped Zinc tris-Thiourea Sulfate (ZTS) crystal

Abstract

Nickel sulfate doped Zinc tris-Thiourea Sulfate (ZTS) crystal is one of the non linear optical crystals which were successfully grown by applying gel technique. The morphological alteration is observed due to the effect of dopant in the doped crystal. The elemental identification was verified using EDAX test. The orthorhombic structure of the dopd crystal was confirmed using powder XRD analysis. The functional groups of Nickel sulfate doped ZTS crystals were observed and recorded by FT IR analysis. The presence of functional groups like as = C–H bend, C–N stretch, C–O stretch, C–C stretch, C–C stretch, N–H wag, N–O asymmetric stretch, N–H bend, O–H stretch, N–H stretch etc. were revealed by FTIR analysis. The mechanical strength was assessed in terms of hardness using Vickers hardness measurement. The doped crystal was found to hard material due to theeffct of dopant. The excitation spectra and the emission spectra were obtained by Photoluminescence study which was carried out to know the nature of crystal as it possesses insulating nature. The SHG efficiency was significantly enhanced due to doping as confirmed implied by the test with Kurtz-Perry method using Nd: YAG laser.