Enhanced solar cell performance of Cu2ZnSn(S,Se)4 thin films through structural control by using multi-metallic stacked nanolayers and fast ramping process for sulfo-selenization

By using the modified 9-layer metal-nanostacked precursor and fast ramping heating sulfo-selenization process, the device efficiency can be significantly improved, due to homogenous crystalline phase formation and uniform grain size distribution throughout the whole metal chalcogenides thin film.292