Chalcogen, Luminescent, Rare earth, Transitional, Eu-Y, Trigonal

• Eu-O-S-Y
• Eu-F-O-Y
• Al-B-Eu-O-Y
• Al-B-Eu-O-Tb-Y
• Ca-Eu-O-P-Y
• optical properties
• luminescence
• photoluminescence spectra
• wavelength for luminescence
• electronic and electrical properties
• luminescent
• rare earth
• lanthanoid
• chalcogen
• transitional