Design and numerical investigation of efficient (FAPbI3)1−x(CsSnI3)x perovskite solar cell with optimized performances. (December 2022)

• Record Type: Journal Article
• Authors: Bencherif, H.; Khalid Hossain, M.
• Is Part Of: Solar energy. Volume 248(2022)
• Page Start: 137
• Page End: 148
• Publication Date: 2022-12
• Subjects: (FAPbI3)1−x(CsSnI3)x -- Perovskite solar cell -- Optical and electrical modeling, charges transport layers -- Recombination mechanisms -- Performance optimization; Solar energy -- Periodicals; Solar engines -- Periodicals; 621.47
• DOI: 10.1016/j.solener.2022.11.012
• Languages: English
• ISSNs: 0038-092X

Abstract

Highlights: (FAPbI3 )1−x (CsSnI3 )x perovskites solar cell with an optimized design was investigated. The TMM was adopted to calculate the device's optical performance, which is introduced into a drift–diffusion electrical model. The effects of absorber thickness, dielectric, recombination mechanisms, and carrier lifetime, were analyzed. Detailed insights about the influence of CTLs band offset were provided. Our findings suggest that this new HP joins the advantages of high optical performances and enhanced electrical outputs. The outcome demonstrates that PCE of 21.43 percent may be attained with improved CTLs and absorber characteristics. Abstract: The endeavor behind this work is to investigate via a combined optical and electrical approach an optimized design of a new halide (FAPbI3 )1−x (CsSnI3 )x perovskites solar cell. The transfer matrix method is utilized to compute the structure's optical parameters introduced into SCAPS-1D Simulator. The impacts of different absorber parameters in terms of thickness, dielectric and carrier life time are investigated. Different recombination effects (radiative, auger, and SRH) on cell performance are considered in the modeling framework. A particular attention to interface traps effect at both Halide perovskite (HP)/charge transport Layers (CTLs) interfaces is given. Our findings suggest that choosing a suitable (FAPbI3 )1−x (CsSnI3 )x alloy and optimizing band offsets alignment, instead of passivating the interfacial defects at CTLs-perovskite interfaces, are beneficial to mitigate both low absorption and unwanted effect of interfacial recombination. The results reveal that a power conversion efficiency ( PCE ) of 21.43 % may be attained with improved CTLs and absorber characteristics. The outcomes of this work give conceptual direction on effective HP material combination adjustment and CTL material choice for highly efficient perovskite solar cells.