Properties of Cu 2 ZnSnS 4 films elaborated by modified spray process

By spray assisted chemical vapor deposition process, we have elaborated Cu 2 ZnSnS 4 thin films at various deposition temperatures without any sulfurization treatment. The (112) preferential orientation was showed by X-ray diffraction. Raman spectroscopy confirmed the CZTS kesterite structure. Band gap values ranging from 1.35 eV to 1.5 eV were obtained by optical measurements.