Sf2 is the chemical formula of cesium sulfide. Chemically, Sf2 usually refers to the compound of cesium sulfide, which is an inorganic compound composed of cesium and sulfur. Cesium sulfide is a yellow crystal with strong photoluminescence characteristics. Cesium sulfide can be used in electronic devices, photoelectric sensors, thermoelectric materials and other fields. In addition, because the crystal structure of cesium sulfide is similar to that of red makeup stone, it is also widely used in earth science.

Cesium sulfide is an amorphous substance which is easy to decompose and burn. Cesium sulfide has high photoluminescence and unique photoelectric sensing performance. In addition, cesium sulfide has high conductivity and thermoelectric properties, and can be widely used in electronic devices, solar cells, thermoelectric and other fields.

Cesium sulfide has high physical and chemical properties, so it is widely used in many fields. Cesium sulfide is mainly used in photoelectric sensors, electronic devices, solar cells, thermoelectric materials, semiconductor light-emitting devices and synthetic jewelry. In addition, cesium sulfide can also be used as photocatalyst and stabilizer in nano-composite materials, bioluminescent probes and other fields.