Manuscript received September 5, 2024; revised September 23, 2024; accepted November 16, 2024; published March 27, 2025
Abstract—The ongoing climate and energy crisis have become more prevalent than ever. Photovoltaic (PV) technologies directly convert incident solar radiation into electricity, offering a highly efficient and promising method for harnessing solar energy. Recently, a novel semiconductor known as organic-inorganic hybrid Perovskite Solar Cells (PSCs) has emerged as the most promising candidate for the next generation of PV devices due to their cost-effectiveness, simple fabrication process, and impressive Power Conversion Efficiency (PCE). However, several critical issues still remain, among which, the hysteresis effect is a phenomenon unique to PSCs. It results in unstable power output, misleading PCE, and rapid degradation of the solar device, making it a major challenge hindering the global commercialization of PSCs. Ion migration has been identified as the primary cause of the hysteresis effect in PSCs. As a result, the proposed solution involves the use of halide engineering to perform interfacial modification of the Electron Transport Layer (ETL). The findings revealed a consistent reduction in the hysteresis effect across all modifications, with InF3 emerging as the most effective among the various chemical additives employed in the ETL.
Keywords—climate change, solar energy, solar cell, photovoltaics, perovskite, hysteresis, ion migration, interfacial engineering, halide engineering
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Cite: Victor Ming Rui Xu, "Hysteresis Inhibition for Performance Improvement via Halide Engineering in Perovskite Solar Cells," International Journal of Chemical Engineering and Applications vol. 16, no. 1, pp. 22-27, 2025.
