Used in semiconductor applications due to its electronic properties, particularly in the development of thermoelectric materials that convert heat into electricity. It is also investigated for use in solar cells and photovoltaic devices because of its optical absorption characteristics. Additionally, copper (II) telluride serves as a precursor in the synthesis of other telluride compounds and nanostructures with potential applications in nanoelectronics and optoelectronics. Research explores its role in catalysis and as a component in advanced battery materials.