Impact of ETL/Absorber Interface layer on Perovskite (CH3NH3PbX3, X: I, Br, Cl) Solar Cell

In this paper, the impact of ETL/Absorber interface layer has been studied on the efficiency of perovskite solar cell using perovskite materials such as methyl ammonium lead trihalide (MAPbX 3 , MA=CH 3 NH 3 , X: I, Br, Cl) through the SCAPS tool. Modeling and the numerical simulation have been performed with electrical properties of the MAPbX 3 material used as the active layer and calculated different parameters such as open-circuit voltage (V oc ), power conversion efficiency (PCE), short-circuit current density (J sc ) and fill factor (FF) correspondingly. The interface layer occurs between ETL (TiO 2 ) as the electron transport layer and absorber layer (CH 3 NH 3 PbX 3 , X: I, Br, Cl) have been considered in the construction of perovskite solar cell with inorganic CuI material acting ashole transport layer (HTL). The capacitance–frequency (C-F) and capacitance-voltage (C-V) characteristics for all above-studied perovskite solar cell have been calculated. The simulated results show that consideration of ETL/Absorber interface layer effects on the MAPbI 3 has better performance parameters (FF=75.59, PCE=15.51, V oc =0.74, J sc =27.71mAcm -2 ) in comparison of MAPbBr 3 and MAPbCl 3 .