STUDY OF ANNEALING EFFECTS ON THE ELECTRICAL PROPERTIES OF EVAPORATED SnS THIN FILMS FOR PHOTOVOLTAIC APPLICATIONS

摘要

Tin Sulphide (SnS) thin films have been deposited on glass slides by thermal evaporation using SnS powder. The improvements in the electrical and photovoltaic properties of SnS thin films annealed at different temperatures (200°C, 300°C, and 400°C) in vacuum for one hour are presented in this work. The photoconductivity response was improved with annealing SnS thin films in vacuum. Better photoconductivity response around the band gap was observed for annealed samples. By hot probe conductivity type was found p-type.