Surfactant free and temperature dependent phase formation of ternary Cu3SnS4 nanoparticles by solvothermal process

• Main Authors: John, Bincy, Genifer Silvena, G., Veena Kumar, K.
• Format: Conference Proceeding
• Language: English
• Subjects: Cu3SnS4; Nanomaterials; Orthorhombic; Solvothermal
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2022.02.409

Surfactant free and cost effective Cu3SnS4 nanomaterials with orthorhombic crystal phase and sphere like morphology were successfully synthesized using facile solvothermal method. A versatile method was used to synthesize nanomaterials with controllable composition and morphology. Here, the reactions were carried out at different temperature from 180 °C to 210 °C in steps of 10 °C. The X-Ray diffraction (XRD) pattern confirms that the samples had the major peaks at (200), (0 0 12), (126), (2 0 18) and (3 2 12) planes and FTIR analysis define only the product formation of the obtained Cu3SnS4 nanoparticles. As the reaction temperature increases the crystallite size of the material was increasing and the SEM analysis resulted that the surface morphology of Cu3SnS4 nanoparticles becomes more self-assembled. The average crystallite sizes of the samples for 180 °C to 210 °C are 1.76 nm, 2.81 nm, 3.64 nm and 4.62 nm respectively. The UV–Visible result of Cu3SnS4 has higher absorbance in the 400–850 nm wavelength region and the band gap values varied from 1.43 eV to 0.98 eV, with a large absorption coefficient of 105 cm−1. The PL spectra resulted with sharp and narrow peaks indicate that the obtained Cu3SnS4 nanoparticles have larger confinement with less impurity.