Tl2Se

Tl₂Se is a layered semiconductor compound composed of thallium and selenium, belonging to the family of post-transition metal chalcogenides. This material is primarily of research interest in thermoelectric and optoelectronic applications, where its narrow bandgap and anisotropic crystal structure offer potential for thermal-to-electric energy conversion and infrared detection. While not yet established in mainstream commercial production, Tl₂Se represents an emerging candidate in the search for alternative thermoelectric materials with improved performance in mid-range temperature regimes.