Recent advances and perspectives on Sb2S3 thin-film solar cells

In recent years, antimony-based chalcogenides have gained attention as exciting prospects for next-generation thin-film photovoltaics. Binary Sb2S3 thin films are up-and-coming for optoelectronic applications due to their remarkable stability, simple composition, suitable charge transport, and facile and cost-effective synthesis. Contrary to other well-established chalcogenide-based solar cells, the power conversion efficiency (PCE) of Sb2S3 solar cells is significantly lower. In light of this, it is imperative to perform a thorough summary and exploration of the performance of Sb2S3 thin-film solar cells, identify the primary issues, and develop viable solutions to enhance their PCE. This review thoroughly analyzed Sb2S3 photovoltaic devices, revealing their significant advances and challenges in the last decade. This review thoroughly analyzes and discusses the most recent developments in Sb2S3 solar cells, including their properties, fabrication processes, and engineering strategies established to improve efficiency. In conclusion, the outlook and prospects for the further advancement of Sb2S3 solar cells are discussed.