Alkali, Rare earth, Luminescence, Trigonal

• Ca-Eu-Mg-Na-O-P
• Ca-Eu-Li-O-P
• Eu-Li-O-Si-Sr
• Ba-Eu-K-O-Sm-W
• B-Ba-Ce-Eu-Mg-Na-O-Tb
• photoluminescence spectra
• wavelength for luminescence
• values of luminescence
• luminescence lifetime
• chromaticity diagram
• alkali
• rare earth
• lanthanoid
• luminescent
• chalcogen