Electrodeposited Cu2ZnSnS4 thin films

Cu2ZnSnS4 (CZTS) thin films have been prepared using Electrochemical Atomic Layer Deposition (EC-ALD and also by one-step conventional constant potential electrodeposition. Optimal deposition conditions were investigated using cyclic voltammetry (CV). Then, based on CVs results, CZTS films were grown employing EC-ALD deposition cycles using the sequence Au/S/Cu/S/Zn/S/Sn/S to form the desired quaternary compound. In parallel, conventional one-step electrodeposition was carried out at -0.85 V vs. Ag/AgCl over 1 hour. A thermal treatment in sulfur vapor was also investigated in an attempt to optimize the stoichiometry. The crystal structure of the films was characterized by XRD and micro Raman spectroscopy, while the morphology, thickness, topography and elemental composition were investigated using FIB-SEM and EDS.Fil: Valdes, Matias Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Modibedi, M.. Energy Materials; SudáfricaFil: Mathe, M.. Energy Materials; SudáfricaFil: Hillie, T.. National Centre For Nano-structured Materials; SudáfricaFil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentin