Chalcogen, Rare earth, Monoclinic, Photoluminescence spectra

• Al-Dy-Eu-O-Sr
• Al-Eu-O-Sr
• Al-Eu-N-O-Si-Sr
• B-Eu-La-O
• Ca-Eu-O-P
• rare earth
• chalcogen
• luminescent
• lanthanoid
• transitional