Temperature-dependent photoluminescence of the synthesized Sb2S3 particles: From nanoparticles to crystalline samples

This research paper examines the findings of a study on temperature-dependent photoluminescence (TDPL) for various synthesized samples of the semiconductor Sb2S3 with different sizes. The samples include different sizes of nanoparticles and crystalline Sb2S3. TDPL is a powerful optical characterization method that provides valuable information about the quality of the synthesized material for potential application in photovoltaic solar cells. Despite its limited research, this semiconductor exhibits potential for use in solar cell applications. The study detected broad photoluminescence (PL) emission at a low temperature of 4 K, and it disappeared at higher temperatures in larger synthesized nanoparticles of at least 100 nm, as well as in the crystalline sample. However, the study recorded the PL spectrum for nanoparticles around 10 nm at both low (4 K) and room temperature, highlighting the significance of particle size in solar cell materials. These findings have implications for various applications and contribute to the understanding of carrier transport and localized states in semiconductor-synthesized materials. © 2025 Elsevier B.V.