CuTlSe2

CuTlSe₂ is a ternary semiconductor compound belonging to the copper-based chalcogenide family, combining copper, thallium, and selenium in a layered or defect-structure crystal lattice. This material is primarily of research interest for optoelectronic and photovoltaic applications, where its narrow bandgap and tunable electronic properties make it a candidate for infrared detection, thermal imaging sensors, and experimental solar cell designs. While not yet widely commercialized, ternary copper chalcogenides like CuTlSe₂ are explored as alternatives to more toxic or scarce semiconductors in niche applications requiring mid- to far-infrared sensitivity.