Borate, Chalcogen, Luminescent, Rare earth, Photoluminescence spectra

• Al-Ce-Lu-O
• Al-Ce-Ga-Gd-O
• B-Ba-Eu-Gd-O
• B-Ba-Eu-O
• B-Ba-Eu-O-Y
• rare earth
• luminescent
• chalcogen
• borate
• lanthanoid
• monoclinic
• trigonal
• hexagonal
• orthorhombic
• cubic