Ce1 Se2

Cerium diselenide (CeSe₂) is a rare-earth semiconductor compound belonging to the lanthanide chalcogenide family, combining cerium with selenium in a layered or crystalline structure. This material is primarily of research and developmental interest for optoelectronic and photonic applications, where its electronic band structure and optical properties are explored for potential use in infrared detectors, photodetectors, and next-generation semiconductor devices; it represents an alternative to more common semiconductors in niche applications requiring rare-earth elements' unique magnetic or optical characteristics.