InCuSeS

InCuSeS is a quaternary metal compound combining indium, copper, selenium, and sulfur—a semiconductor or mixed-metal chalcogenide material. While not widely commercialized as a standard engineering alloy, this composition belongs to the family of multinary chalcogenides being explored for optoelectronic and thermoelectric applications where tunable band gaps and mixed-metal synergies are advantageous. Its research context suggests potential use in photovoltaic devices, infrared detectors, or solid-state energy conversion systems where conventional binary semiconductors (CdTe, CdSe) or ternary compounds prove limiting.