Synthesis and Properties of SnS Thin Films by Chemical Bath Deposition

Tin sulphide (SnS) thin films have been deposited on glass substrate by chemical bath deposition. The precursor solution was prepared from tin (II) chloride dihydrate, thioacetamide. Triethanolamine, ammonia and ammonium chloride were used as complexant, solvent and buffer solution, respectively. The crystallographic structure, morphology and optical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy and UV-Vis spectrophotometer. XRD analysis shows that SnS thin films were polycrystalline and had orthorhombic structure, and SEM micrographs reveal that SnS thin films were densely packed surface coverage and consists of large flowerlike grains. SnS thin films with the optical bandgap of 1.3 eV were achieved at 300 degrees C.