4. Conclusion
In this work,lead-free FASnI3 based perovskite solar cell was improved and considered for superior PCE by simulation software. The impact of the difference in Thickness of HTL, ETL, and Ab layer on PCE was studied, and the thickness of 400nm, 100nm, 350nm were obtained respectively. The outcome of the difference in defect density and acceptor was also considered and improved. We done our present work in same method for all and finally we attainedthe PCE is 18.10% along with Jsc(29.61v),FF(78.14%), Voc(0.7821v), which are a dynamic section for a enhanced perovskite solar cell. The device performance with the stable temperature at 300k. Through a back metal contact Au with work function 5.1eV. The QE of the improved solar cell remains constant till 580nm then drop to zero at 910nm, showing that the photon to electron conversion occurs over the visible region as shown in figure 11(a),(b). Results are also compared with already reported experimental and simulation data. Finally, we got 18.10%of PCE. So here we proposed a novel simulation model replacing the pb-based PSC with Sn based FASnI3 to study its performance, and also suggesting CuO2 as an alternate HTL because of its low cost fabrications and outstanding mobility.