Structural and Optical properties of Green and Chemical synthesized Tin Sulfide for Dye Sensitized Solar Cells Applications

Abstract

Abstract: The structural and optical properties of nanoparticles perform a crucial role in generating highly effective dyesensitized solar cells. This study focuses on the synthesis of Tin Sulfide (SnS) nanoparticles using both Green and chemical methods. The SnS nanoparticles are then characterized using several analytical techniques, including X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), X-ray fluorescence (XRF) and UV-Visible spectroscopy. The XRD examination indicated the existence of an Orthorhombic SnS structure in both C:SnS and G:SnS nanoparticles. The crystallite size was found to be 13 nm for C:SnS and 5 nm for G:SnS, suggesting that the synthesized material is in the nanoscale range. The FESEM imaging revealed the presence of a spherical form in both nanoparticles. XRF confirmed the existence of Sn and S elements while also confirming the lack of any other impurities, so verifying the purity of the nanoparticles. The UV-visible spectroscopy results showed that the band gap energy for C:SnS was 2.40 eV, while for G:SnS it was 2.28 eV. The J-V characteristic curve of chemically synthesized SnS demonstrates power conversion efficiency of 5.13%, whereas the Green Synthesized SnS reveals an efficiency of 5.57%. This indicates that both materials have potential uses in DSSC devices.