Improving the efficiency of Tin-Based Perovskite using WxAMPS

Perovskite solar cells (PSC), containing hybrid organic-inorganic layers, have shown promising properties that enhances the performance of thin films in photovoltaics. Lead (Pb)- based halide perovskites have made significant progress in improving the efficiency of metal halide perovskites to 25.5% in the recent years due to its unique optical properties and tolerance to defects in its crystallized structure. However, despite its promising properties, it contains lead which is intrinsically unstable and toxic. Due to this, tin- based perovskites have been investigated as an alternative to toxic lead perovskite, which can be attributed to its bandgap close to the optimal photovoltaic property. In this research, the efficiency and optical properties of tin-based (CH₃NH₃SnI₃) perovskites using TiO₂ ETL and Spiro:OMeTAD HTL will be explored using Widget Provided Analysis of Microelectronic and Photonic Structure (WxAMPS). The addition of other metals as a back contact electrode such as Pt, Au, and Ag, will also be evaluated. The optical layer properties including the thickness and deposition parameters will be varied to determine the optimum efficiency for the film.