摘要： Perovskite solar cells have gained remarkable position among the emerging photovoltaic technologies, owing to their increased power conversion efficiency exceeding 20%. The development of various electron transport materials (ETM), perovskite absorbers, hole transport materials (HTM) have contributed well in the efficiency enhancement and stability improvement. One of the major development is the use of ZnO as ETM that replaces TiO2. ZnO has material properties similar to that of TiO2 but possesses improved electron mobility. Moreover, ZnO fabrication methods are easier and of low cost. Cuprous oxide (Cu2O), an earth abundant inorganic p-type material, is recently investigated as a best hole transport material that can replace Spiro-OMeTAD. In this paper, the performance of a planar CH3NH3PbI3 based solar cell using ZnO as ETM and Cu2O as HTM is evaluated using SCAPS 1D software. The combination of ZnO ETM and Cu2O HTM improves the charge transport and reduces the cost. The overall conversion efficiency obtained for the proposed ZnO ? Cu2O perovskite solar cell using CH3NH3PbI3 by SCAPS simulation is 22.77%. The performance of CH3NH3PbI3 based solar cells with ZnO as ETM and with various hole transport materials such as spiro-OMeTAD, CuI, CuSCN and NiO are evaluated and compared with the proposed structure using SCAPS software. The result indicates that ZnO ? Cu2O as ETM-HTM pair is a reliable configuration for CH3NH3PbI3 based solar cell.