Modifying the Optical Properties of ZnS for Optoelectronic Applications

Iron (Fe) doped zinc sulfide (ZnS) nanoparticles were prepared by thermolysis with varying concentrations of iron. X-ray diffraction (XRD) results revealed the zinc blende cubic structure of ZnS. The effect of iron on lattice parameters such as crystallite size, micro strains, and dislocation density was examined. The defect chemistry inside the samples was analyzed by photoluminescence spectroscopy (PL). The variation in PL intensity introduced by doping can be used in optical applications. The optical parameters of nanostructures were investigated with different doping and the incorporation of Fe substitute for Zn ions using UV-Visible (UV-Vis).