Computational study of CuAlO2/ZnO, and NiO/ZnO Perovskite Solar Cells by Numerical Simulation

Abstract

This study presents a comparative analysis of the performance of CuAlO₂/ZnO and NiO/ZnO perovskite solar cells employs numerical simulation with an emphasis on temperature flactuations, layer thicknesses  and electrical propeties using the SCAPS-1D modlling tool, the photovoltaic parameters such as open circuit voltage (V_OC), short circuit current density (J_SC), fill factor (FF), and power convrsion efficiency (PCE) were invstigated under standard test conditions and varying operational senarios. The effects of the hole transport layer (HTL) materials (CuAlO₂ and NiO) on device performace were assessed with particular attention to their band alighment, carrier mobility, and defect density. Results indicate that CuAlO₂ structure achieves higher efficiency due to better band alghment and charge transport properties compared to NiO/ZnO. However, the NiO-based device demostrated superior thermal stability over a wide temperature range. Optimization of HTL thickness and defect density further enhaned device performance with CuAlO₂ exhibiting optimal peformance at lower defects densities. This comparative study provides an insights into material selection an design parameters for efficient and stable perovskite solar cells