P2Os

P₂O₅ (phosphorus pentoxide) is an inorganic ceramic compound and semiconductor material formed from phosphorus and oxygen. It is primarily used as a precursor and dopant in glass manufacturing, particularly in phosphate glasses and optical fibers, where it modifies thermal and chemical properties. In semiconductor and photonic applications, P₂O₅ serves as an insulating layer and dopant in integrated circuits and thin-film devices; engineers select it for its ability to lower glass transition temperatures, improve chemical durability, and enable controlled refractive index tuning in optical systems.