Empowering progress: unraveling the promising capabilities of Cu2S:ZnS:NiS2 trimetal sulphide thin films

Abstract

This study focuses on the synthesis and characterization of a thin film comprising of trimetallic sulphide, Cu₂S:ZnS:NiS₂. The fabrication process involved the utilization of diethyldithiocarbamate as a sulfur source, employing physical vapor deposition. A range of analytical techniques were employed to elucidate the material’s structure, morphology, and optical characteristics. The thin film exhibited a well-defined crystalline structure with an average crystallite size of 33 nm. X-ray photoelectron spectroscopy provided distinct core level peaks associated with Cu 2p, Zn 2p, Ni 2p, and S 2p. The electrochemical properties were assessed through voltammetry measurements, which demonstrated an impressive specific capacitive of 797 F·g⁻¹. The thin film demonstrated remarkable stability over multiple cycles, establishing it as a highly promising candidate for diverse energy storage applications. In addition, comprehensive investigations were carried out to assess the photocatalytic performance of the fabricated material, particularly its efficacy in the degradation of diverse environmental pollutants. These notable findings emphasize the versatility of trimetal sulphide thin films, expanding their potential beyond energy storage and opening avenues for further research and technological advancements in fields including photocatalysis and beyond.