Role of pH of precursor solution in taming the material properties of spray pyrolysed SnS thin films

► Investigated the effect of pH of the precursors in CSP technique on the material properties of SnS films for the first time. ► Drastic change in crystalline size is achieved. ► Could deposit very low resistive SnS films with photosensitivity. ► Optimized the pH of the precursors for depositing device quality SnS films using CSP technique. ► Engineered the optical band gap of SnS thin films.