KFeCuTe2

KFeCuTe2 is a ternary chalcogenide semiconductor compound combining potassium, iron, copper, and tellurium elements. This material belongs to the quaternary chalcogenide family and is primarily investigated in research contexts for potential thermoelectric and photovoltaic applications, where mixed-metal tellurides offer tunable band gaps and electronic properties. The combination of earth-abundant iron and copper with tellurium positions it as a candidate for cost-effective alternatives to premium semiconductors, though it remains largely in development phase rather than established industrial production.