Pb1 S1

Lead sulfide (PbS), commonly known as galena, is a IV-VI semiconductor compound with a rock-salt crystal structure. It is primarily used in infrared detection and thermal imaging applications, where its narrow bandgap and high carrier mobility make it valuable for room-temperature and cooled detector systems. PbS is also employed in solar cells and photodetectors, offering advantages over wider-bandgap alternatives in capturing longer-wavelength infrared radiation, though it faces competition from more thermally stable compounds in demanding aerospace and military applications.