Effect of acceptor density, thickness and temperature on device performance for tin-based perovskite solar cell

• Numerical simulation of lead-free perovskite solar cell using SCAPS-1D. • Device performance is optimized on studying the influence of various key parameters. • An efficiency of 24.36 % is obtained from the optimized device. In the work, a perovskite solar cell is simulated in SCAPS-1D software using Methylammonium tin iodide (CH 3 NH 3 SnI 3 ) as absorber, Titanium dioxide (TiO 2 ) and Spiro-OMeTAD as electron and hole transport layers respectively. So as to obtain a high efficiency value along with a high fill factor, a detailed study of effect of several parameters that is absorber layer’s acceptor density, absorber layer’s thickness and solar cell’s operating temperature has been taken into account for thorough analysis. The optimized structure Spiro-OMeTAD/CH 3 NH 3 SnI 3 /TiO 2 /FTO achieves maximum output result at Fill factor (FF) 77.45%, Open circuit voltage (V oc ) 0.89 V, efficiency (ɳ) 24.36% and short circuit current density (J sc ) 35.32 mA/cm 2 . Thus, a comparative study is done for different cell models.