Performance investigation of MAPbI3/MASnI3 based all-perovskite tandem solar cell using SCAPS simulation

Abstract Due to the complexity of the fabrication process of tandem solar cells, perovskite materials provide a cost-effective and simpler fabrication solution. In this work, MAPbI 3 /MASnI 3 Perovskite-based Tandem solar cell has been explored numerically by using SCAPS-1D . Methylammonium Lead Iodide (CH 3 NH 3 PbI 3 or MAPbI 3 ) and Methylammonium Tin Iodide (CH 3 NH 3 SnI 3 or MASnI 3 ) have been considered as wide bandgap (WBG) and narrow bandgap (NBG) absorber material for the top cell and bottom cell, respectively. WBG top cell and NBG bottom cell are both investigated through the change in the depth of perovskite materials at the current matching conditions at the illumination of Standard AM 1.5 spectrum. The all-perovskite MAPbI 3 /MASnI 3 tandem solar cell with copper (I) oxide (Cu 2 O) hole transport layer has achieved excellent performance with a maximum power conversion efficiency (PCE) of 32.74% with V oc of 1.68 V, J sc of 24.6 mA cm −2 , and fill factor (FF) of 79.39%, respectively.