Preparation and Properties of Cu 2 ZnSnS 4 Nanoparticles by Solvothermal Method

Earth-abundant Cu2ZnSnS4(CZTS), a promising alternative photovoltaic material, was prepare by a mild solvothermal route and annealed. The as-prepared nanoparticles were obtained at 200°C and analyzed by X-ray diffraction(XRD). The crystallinity of CZTS particles was greatly improved by annealing in N2 gas shown in XRD. EDS results indicate the composition of the film and the variety of the ratio of the metal atoms and S atoms.