title: Study on luminescence behavior of BaAl12O19:Tb, Eu.
abstract: BaAl12O19:Tb, Eu phosphors were prepared by sol-gel technique. The luminescence properties and the energy transfer between Eu2+ and Tb3+ were investigated. For BaAll2O19:Tb phosphor, the strongest excitation peak and emission peak produced from Tb3+ transition of 5D4-7F5 were at 240 nm and at 550 nm respectively, while the peak shape was narrow and peak intensity was large. The Eu2+ added in the BaAl12O19:Tb induced energy transfer to Tb3+ and different color luminescence from blue (400 nm) to green (570 nm) was obtained by changing the ratio of Tb3+/Eu2+ with excitation at 240 nm.
authors.affiliation: Key Laboratory of Rare-Earth Chemistry and Applying Liaoning Province, Shenyang University of Chemical Technology, Liaoning Shenyang 110142, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Xie
authors.forename: Lin-Jiu
authors.initials: LJ
authors.lastname: Xiao
authors.forename: Ming-Rui
authors.initials: MR
authors.lastname: He
authors.forename: Yong-Jie
authors.initials: YJ
authors.lastname: Chen
authors.forename: Wen-Ze
authors.initials: WZ
authors.lastname: Li
authors.forename: Wei-Ke
authors.initials: WK
authors.lastname: Yu