Chalcogen, Luminescent, Monoclinic, Wavelength for luminescence

• Ba-Mg-O-P-Tb
• Al-Dy-Eu-O-Sr
• Cd-Eu-O-W
• Ba-Dy-Eu-La-O-W
• Er-Nb-O-Y-Yb
• chalcogen
• luminescent
• rare earth
• lanthanoid
• transitional