Alkali, Chalcogen, Tetragonal, Wavelength for luminescence

• Bi-Na-Nd-O-W
• Eu-Na-Nb-O-Sr
• Eu-La-Mo-Na-O-Tb
• Eu-La-Na-O-W
• Ca-Ce-Ge-Li-O
• alkali
• chalcogen
• luminescent
• rare earth
• lanthanoid