Novel double graded perovskite materials for performance increment of perovskite solar cell using extensive numerical analysis

Abstract The influence of single, double absorber layers based on perovskite solar cells has attracted considerable attention of researchers in the last few years; according to their promising output parameters such as short-circuit current (J SC ), open-circuit voltage (V OC ), fill factor (FF) and power conversion efficiency (PCE). The present work makes under study and investigation the comparison modelling between the two configurations of ITO/C 60 /MAPb(I 1-x Cl x ) 3 / Spiro-OMeTAD /Au and ITO/C 60 /MAPb(I 1-x Cl x ) 3 /MASnI 3 /Spiro-OMeTAD /Au, the problem of lower absorption materials such as MAPb(I 1-x Cl x ) 3 limits its output photovoltaic applications. Nevertheless, the need to use a prime candidate of the lead-free MASnI 3 for grading with the first absorber layer that leads to absorbing a wider quantity of light spectrum, which boosting up efficiency. The simulating software of SCAPS-1D is used to examine our proposed models. The optimal output parameters (J SC , V OC , FF, and PCE) are obtained in this simulation are 27.69 mA cm −2 , 1.37 V, 89.1%, and 33.66%.