ZnS ®lms were synthesised using a novel electrostatic assisted aerosol jet deposition (EAAJD) technique at temperatures above 450 ³C from an aqueous solution of zinc chloride and thiourea. The ®lms showed a mixture of hexagonal and cubic structures and strong preferred orientations, with the c-axis normal to ®lm surface. Annealing at higher temperatures improved the crystallinity of the as-deposited ®lms. However, ZnO was formed when the as-deposited ®lms were annealed in air. The ZnS ®lms exhibit a planar structure with small crystal sizes (v200 nm). The optical direct bandgap values (3.35±3.46 eV) of the as-deposited ®lms were lower than reported values for polycrystalline ZnS, probably owing to their poor crystallinity and partial oxidation.