Eu-doped BaO-Al2O3-SiO2−MgF2 glass and glass ceramics

• Eu 2+ -doped BaAl 2 Si 2 O 8 glass-ceramics have been prepared by glass melting. • Different nanocrystals are formed during BaO-Al 2 O 3 -SiO 2− MgF 2 glass crystallization. • Eu 3+ ions are reduced during crystallization and luminescence of Eu 2+ ions growths. Transparent Eu 2+ -doped BaAl 2 Si 2 O 8 glass-ceramics have been prepared by traditional glass melting method. The evolution of synthesized materials during thermal treatment in air atmosphere was studied by X-ray diffraction analysis and photoluminescence spectroscopy. Thermal treatment of glass in air atmosphere leads to the formation of numerous crystal phases, the main of them is BaAl 2 Si 2 O 8 . Obtained glass-ceramics demonstrate strong blue emission (λ max = 420 nm) related to the 5d-4f 7 transition of Eu 2+ ions. Prepared transparent Eu 2+ -doped BaAl 2 Si 2 O 8 glass ceramics can be considered as potential candidate for practical application in powerful white light-emitting diodes.