Large-scale synthesis of copper sulfide by using elemental sources via simple chemical route

Copper sulfide is a low-cost and non-toxic material which is very attractive and promising for various applications. There is a need of a large-scale production of this material by simple methods. Here, a simple and ambient method is proposed for a large-scale preparation of copper sulfide. The synthesis is carried out at room temperature by using ultrasonication method where the elemental precursors, copper and sulfur are directly used. The present method gives gram scale synthesis with high yield in a short period of time. The materials are characterized by different techniques, their electrical conductivity and Seebeck coefficient are also measured and analyzed. The present method is one of the simple ways of producing copper sulfide just at room temperature.