Abstract
Herein, FTO/TiO2/Sb2S3/Au solar cell characteristics via SCAPS‐1D modeling are examined. The research begins with device modeling of the Sb2S3 conventional solar cell based on experimental data, which results in excellent agreement with the power conversion efficiency recorded in the literature of ≈4.72%. The influence of several factors on the characteristics of conventional solar cells is then investigated, including Sb2S3 thickness, carrier concentration, bulk and interface defects, and buffer layer type (TiO2, WS2, and CdS). An optimal efficiency of 9.97%, open‐circuit voltage (Voc) of 0.96 V, short‐circuit current (Jsc) of 19.69%, and fill factor (FF) of 52.26% are found for the FTO/WS2/Sb2S3/Au optimized solar cell. Finally, the influence of NiO as the back surface field and parasitic resistance (Rs and Rsh) on the performance of Sb2S3 solar cells is investigated. The innovative solar cell design (FTO/WS2/Sb2S3/NiO/Au) with NiO thickness of 20 nm, Rs < 2 Ω cm−2, and Rsh > 700 Ω cm−2 yields a high efficiency of more than 14.38%, FF > 68.93%, Voc > 1 V, and Jsc > 20.67 mA cm−2. These qualities allow for the large‐scale manufacture of a solar cell by including it in a manufacturing workflow.
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