K2 P4 Au2 S14

K2P4Au2S14 is a mixed-metal sulfide semiconductor compound containing potassium, phosphorus, gold, and sulfur in a layered or complex crystal structure. This is a research-phase material studied for its electronic and photonic properties rather than an established industrial compound. The gold-sulfur coordination and phosphorus-potassium framework suggest potential applications in optoelectronics, photocatalysis, or solid-state thermoelectric devices where unconventional band structures and anisotropic properties could offer advantages over conventional semiconductors.