Ce1 Se1

Cerium selenide (CeSe) is a rare-earth semiconductor compound belonging to the cerium chalcogenide family, characterized by the coupling of a lanthanide metal with a group XVI element. This material is primarily investigated in research and emerging applications for optoelectronic and thermoelectric devices, where its narrow bandgap and rare-earth properties offer potential advantages in infrared detection, photovoltaics, and solid-state cooling systems. Engineers consider CeSe when conventional semiconductors (Si, GaAs) cannot meet requirements for specific wavelength response or when rare-earth-driven electronic properties are essential, though it remains largely in the development phase outside specialized research contexts.