Unveiling the potential of FASnI3 solar cells through advanced charge transport materials: A SCAPS-1D perspective.

As demand grows for efficient and affordable photovoltaic technology, investigating alternative materials becomes crucial. Tin-based perovskite has a low bandgap, great optoelectronic properties, and higher carrier mobility. It has become an interesting absorber layer for perovskite solar cells (PSCs). However, improving their device performance presents challenges. Copper-based hole transport materials (HTM) and zinc-based electron transport materials (ETM) offer low cost, easy fabrication, and high electrical conductivity. This research analyzes the impacts of these transport materials on the FASnI 3 absorber layer using numerical modeling in SCAPS-1D. Through simulation analysis, the study thoroughly examines the effect of these materials on PSC performance parameters such as QE curve, layer thickness, defect density, interface defect, and doping concentration. Moreover, this study identifies the most efficient PSC configurations, achieving good performance by ITO/ZnSe/ FASnI 3 / Cu 2 O /Au with a V oc of 2.05 V, J sc of 29.316 mA/cm2, FF of 53.37 %, and power conversion efficiency (PCE) of 32.13 %, providing valuable insights in optimizing FASnI 3 solar cells and advancing next-generation solar energy conversion technologies. • SCAPS 1D simulation on perovskite solar cell. • Tin-based perovskite has emerged as encouraging absorber layer in perovskite solar cells. • Cu-based HTM and Zn-based ETM offer low cost, easy fabrication, and high electrical conductivity. • Using different HTL materials such as Cu 2 O , CuSbS 2 , and Zn-based ETL have been identified as potential candidates to enhance the performance of FASnI 3. • A study identifies good performance by ITO/ZnSe/ FASnI 3 / Cu 2 O /Au with a V oc of 2.05 V, J sc of 29.316 mA/cm2, FF of 53.37 %, and PCE of 32.13 %, [ABSTRACT FROM AUTHOR]