Preparation of Cu2ZnSnS4 thin films by sulfurizing stacked precursor thin films via successive ionic layer adsorption and reaction method

► We fabricated Cu2ZnSnS4 films by sulfurizing stacked films via SILAR method. ► The CZTS thin films have kesterite structure and p-type conduction. ► The CZTS thin films have good optical and electrical properties for solar cells. ► The SILAR method is quite simple and low-cost to prepare CZTS thin films.