Used in semiconductor applications due to its narrow bandgap and p-type conductivity, making it suitable for infrared detectors and thermoelectric devices. It is also investigated for use in solar cells as a light-absorbing material because of its strong absorption in the visible and near-infrared range. Additionally, copper(I) telluride serves as a precursor in the synthesis of other telluride-based materials for advanced electronic and optoelectronic systems. Its low toxicity compared to other heavy metal chalcogenides enhances its potential for eco-friendly material design.