Numerical Modeling and Optimization of Lead-Free Hybrid Double Perovskite Solar Cell by Using SCAPS-1D

The highest power conversion efficiency (PCE) for organic-inorganic perovskite solar cells based on lead is reported as 25.2% in 2019. Lead-based hybrid perovskite materials are used in several photovoltaics applications, but these are not highly favored due to the toxicity of lead and volatility of organic cations. On the other hand, hybrid lead-free double perovskite has no such harm. In this research study, SCAPS numerical simulation is utilized to evaluate and compare the results of perovskite solar cell based on double perovskite ${\left(\text{FA}\right)}_2{\text{BiCuI}}_6$ and standard perovskite ${\text{CH}}_3{\text{NH}}_3{\text{PbI}}_3$ as an active layer. The results show that the power conversion efficiency obtained in the case of ${\left(\text{FA}\right)}_2{\text{BiCuI}}_6$ is 24.98%, while in the case of ${\text{CH}}_3{\text{NH}}_3{\text{PbI}}_3$ , it is reported as 26.42%. This indicates that the hybrid organic-inorganic double perovskite ${\left(\text{FA}\right)}_2{\text{BiCuI}}_6$ has the ability to replace hybrid organic-inorganic perovskite ${\text{CH}}_3{\text{NH}}_3{\text{PbI}}_3$ to expand next-generation lead-free harmless materials for solar cell applications.