Preparation and characterization of spray pyrolysed ZnS thin films and the effect of chlorine doping

Abstract

Employing low cost spray pyrolysis technique, ZnS thin films were prepared, using different precursors and by varying sulfur concentration. Effect of chlorine doping was studied on all the samples. Characterization of the sprayed ZnS thin films was done using XRD, UV-Vis-NIR spectrophotometer and fluorimeter. ZnS thin films prepared using zinc chloride precursor showed better crystallinity. An obvious variation in band gap and photoluminescence was observed with variation in sulfur concentration in ZnS samples.