Tb2O3

Terbium oxide (Tb₂O₃) is a rare-earth ceramic compound that functions as a wide-bandgap semiconductor, belonging to the lanthanide oxide family. It is primarily investigated for optoelectronic and photonic applications, including phosphors for display technologies, scintillator materials for radiation detection, and potential optical waveguide substrates. Engineers select this material for specialized high-performance applications where rare-earth elements' unique electronic and luminescent properties provide advantages over conventional semiconductors, though it remains less common in mainstream manufacturing than yttrium or cerium oxides due to cost and supply constraints.