Optimizing the Performance of Lead-free CH3NH3SnI3 Perovskite Solar Cells via Thickness, Doping, and Defect Density Control

Authors : Leila Ghalmi

Pages : 44-51

Doi:10.53525/jster.1231984

View : 72 | Download : 84

Publication Date : 2023-06-21

Article Type : Research Article

Abstract :Perovskite solar cells have gained significant attention due to their excellent photovoltaic performance and simple manufacturing process. However, the use of lead (Pb) in the widely studied CH3NH3PbI3 perovskite material limits its large-scale production due to low stability in the air. As a result, researchers have turned to lead-free CH 3 NH 3 SnI 3 perovskite as a promising alternative. In this study, we used one-dimensional simulation software to investigate the photovoltaic properties of CH 3 NH 3 SnI 3 perovskite solar cells with a TiO 2 /CH 3 NH 3 SnI 3 /Cu 2 O structure. By adjusting the thickness of the absorbing layer, doping concentration, and density of defects, we were able to improve the performance of the solar cells. The obtained results of Jsc= 31,519 mA/cm 2 , Voc = 0,965V, FF = 78,717%, and PCE = 23,943% demonstrate the potential of lead-free CH 3 NH 3 SnI 3 as a highly efficient and environmentally friendly solar absorber.
Keywords : Perovskite güneş pilleri, Fotovoltaik performans, Üretim süreci, Kurşunsuz perovskite, Sayısal simülasyon.