Borate, Rare earth, Hexagonal, Optical properties

• B-Eu-Gd-O-Y
• B-O-Y
• Al-B-Dy-La-O
• B-Ba-Eu-O
• B-O-Tb-Y
• luminescence
• wavelength for luminescence
• photoluminescence spectra
• phonons
• values of luminescence
• borate
• chalcogen
• rare earth
• metalloid
• lanthanoid