Evaluating the Performance of all-inorganic Perovskite Solar Cells: Integrating Experimental Data with Theoretical Frameworks

Abstract

Cesium lead bromide (CsPbBr3) perovskite has gained significant attention for its excellent stability and optoelectronic properties, making it a promising candidate for photovoltaic applications. In this study, high-quality CsPbBr3 thin films were fabricated using physical vapor deposition (PVD), a solvent-free and scalable technique that enables precise control over film morphology and composition. Atomic force microscopy (AFM) revealed uniform surfaces with minimal roughness, while Tauc plot analysis confirmed an optical bandgap consistent with CsPbBr3’s expected photovoltaic characteristics. Complete perovskite solar cells were then fabricated using the PVD-deposited films, achieving power conversion efficiencies (PCEs) in the range of 6,61%. Device simulations were performed to analyze charge transport and recombination dynamics, providing insights into performance-limiting factors. This work demonstrates the viability of PVD for fabricating efficient and stable CsPbBr3-based solar cells, offering a pathway toward scalable and reproducible perovskite photovoltaics.