Alkaline, Borate, Chalcogen, B-Ba-O, Optical properties

• B-Ba-Eu-Gd-O
• B-Ba-Eu-O
• Al-B-Ba-O
• B-Ba-F-O
• luminescence
• phonons
• photoluminescence spectra
• wavelength for luminescence
• infrared spectra
• chalcogen
• metalloid
• alkaline
• borate
• nonmetal
• trigonal
• orthorhombic
• hexagonal
• monoclinic
• triclinic