Copper selenide is an inorganic binary compound consisting of copper and selenium. Its formula is sometimes described as CuSe or Cu2Se, but it is non-stoichiometric.It is a semiconductor and is frequently grown as nanoparticles or other nanostructures.
Molar mass：206.063 g·mol−1
Appearance：Dark blue, black
Copper(I) selenide is used as intermediate in chemical research. It is a thermoelectric material used in a number of industrial applications including infrared detection and imaging.