فهرست نشریات علمی دسترسی آزاد ایران

In this study, SnO2 nanostructures synthesized via the hydrothermal route and deposited by plasma process were employed as an interface modification layer in a perovskite solar cell with FTO/TiO2/SnO2/CH3NH3PbI3/Au architecture. The results showed that precise interface engineering through the introduction of SnO2 significantly improves charge transport and extraction. Structural and spectroscopic analyses confirm the formation of a stable and high-purity SnO2 phase. In contrast, the plasma coating technique allows the formation of a thin, uniform, and well-adhered layer at low temperature conditions compatible with perovskite materials. The improved electrical and optical responses of the modified devices indicate a reduced trap density and optimized interface charge transport paths, leading to enhanced photovoltaic performance even in a simple configuration without a hole transport layer, fabricated under ambient conditions. These findings highlight the effectiveness of plasma-assisted SnO₂ interface engineering as a practical and scalable strategy to improve the performance and stability of perovskite solar cells.