Chalcogen, Lanthanoid, Luminescent, Rare earth, Eu-Y, Monoclinic

• Eu-Nb-O-Y
• B-Ba-Cl-Eu-O-Y
• Bi-Eu-O-Si-Y
• Eu-Mo-O-Y
• Eu-O-W-Y
• optical properties
• luminescence
• wavelength for luminescence
• photoluminescence spectra
• values of luminescence
• rare earth
• lanthanoid
• luminescent
• chalcogen
• transitional