Nonmetal, Rare earth, Photoluminescence spectra, Trigonal

• Ca-Eu-O-P
• Eu-O-S-Y
• B-Ce-Lu-O-Sc
• Eu-Li-O-Si-Sr
• Al-Eu-N-O-Si
• rare earth
• nonmetal
• luminescent
• lanthanoid
• chalcogen