title: Preparation and luminescence properties of LaMgAl11O19:Eu3+ phosphor powder.
abstract: LaMgAl11O19, is a kind of rare earth aluminate with the hexagonal structure, which has been used as a host material for the luminescence of various rare earth and magnet-like ions. LaMgAl11O19:Eu3+ phosphors have been prepared through the one-pot method. X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA) and photoluminescence spectra were used to characterize the resulting phosphors. The results of XRD indicated that the phosphors crystallized completely at 1,400 degrees C. In LaMgAl11O19:Eu3+ phosphors, the Eu3+ shows its characteristic red emission at 615 nm (5D0-7F2) upon excitation into 404 nm, with an optimum doping concentration of 15 mol% of La3+ in the host lattices.
authors.affiliation: Department of Material Science and Technology, Northeastern University at Qinhuangdao Branch, Qinhuangdao 066004, P. R. China.
authors.forename: Xiumei
authors.initials: X
authors.lastname: Han
authors.forename: Dongyang
authors.initials: D
authors.lastname: He
authors.forename: Zhe
authors.initials: Z
authors.lastname: Li
authors.forename: Xiwei
authors.initials: X
authors.lastname: Qi
authors.forename: Xiaoqiang
authors.initials: X
authors.lastname: Wang
authors.forename: Yingling
authors.initials: Y
authors.lastname: Wang
authors.forename: Zhaoxia
authors.initials: Z
authors.lastname: Wu