V2O5 as Potential Hole Transport Material for Tin-based Non-toxic Perovskite Solar Cells

Perovskite solar cells are becoming more efficient and stable day by day due to continuous research. The commercial use of the cells is, however, being constrained by various obstacles. These include material costs, absorber material toxicity, cell efficiency, and cell stability. To solve these issues, new materials and solar cell architectures should be investigated. In this study, we investigate the use of V2O5 as a novel hole transport material (HTM) for non-toxic perovskite solar cells. Our proposed cell structure incorporates V2O5 as the HTM, CsSnI3 as the absorber, and WS2 as the electron transport material (ETM). Through simulation and optimization, we achieve an optimal efficiency of 24.71% with an open circuit voltage (Voc) of 0.8489V, a short circuit current (Jsc) of 35.601mA/cm2, and a fill factor (FF) of 81.75%. These results highlight the potential of V2O5 as a promising HTM for enhancing the performance of non-toxic perovskite solar cells.