抄録
Phosphor materials have been searched in the Sr-Al-B-O system. For a molar ratio (Sr1-xEux) : Al : B = 1 : 2 : 2 (x = 0.01), a crystalline layered compound SrAl2B2O7：Eu2+ was synthesized at 900 °C for 12 h in a reductive atmosphere. The SrAl2B2O7:Eu2+ showed blue emission under UV (254 nm) and VUV (Vacuum Ultraviolet, 146 nm) excitation. For the ratio (Sr1-xEux) : Al : B = 2 : 2 : 2 (x = 0.01), a transparent glass and SrAl2O4 component with a long afterglow phosphorescence was found.
