COMPARATIVE STUDIES OF UNDOPED AND ZINC SULFATE DOPED MAGNESIUM IODATE CRYSTALS

Abstract

Undoped and zinc sulfate doped magnesium iodate crystals have been grown by solution method using the double distilled water as the solvent. The reactants used here are magnesium sulfate, iodic acid and zinc sulfate and the grown crystals were harvested after a period of nearly one month. The grown crystals were subjected to XRD studies, LDT studies, UV-visible spectral studies, micro hardness studies, SHG and dielectric studies. Both undoped and zinc sulfate doped magnesium iodate (ZSMI) crystals are found to be crystallizing in monoclinic crystal structure. The transmittance is observed to be decreasing when magnesium iodate crystal is doped with zinc sulfate. The hardness is found to be increasing due to doping of zinc sulfate into the lattice of magnesium iodate crystal. The NLO properties like SHG efficiency have been enhanced when magnesium iodate crystals are doped with zinc sulfate and the obtained results are analyzed and reported.