Abstract
This study presents a numerical analysis of heterojunction perovskite solar cells (PSCs) with a proposed structure of Glass/ETL/i-CH3NH3SnBr3/CsPbI3/HTL using the SCAPS-1D software. The primary objective is to investigate the influence of the thickness of CsPbI3 perovskite active layers with iCH3NH3SnBr3 as the permeable layer. Additionally, the power conversion efficiency (PCE), temperature dependence, quantum efficiency, open-circuit voltage (Voc), fill factor (FF), short-circuit current density, and J-V curve simulations for varying Na are examined. The highest PCE achieved was 42 %, accompanied by an FF of 90 %, Voc of 1.29 V, and Jsc of -35,42 mA/cm2. The findings of this analysis contribute to the understanding of the performance and optimization of heterojunction perovskite solar cells, highlighting the significance of layer thickness and device parameters in achieving high-efficiency solar energyconversion.
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