title: Luminescent properties of hydrocarbonate-gel derived MgSrAl10Ol7:Eu2+ blue phosphor.
abstract: Hydrocarbonate-gel method was applied to prepare MgSrAl10O17:Eu2+ blue phosphors with quasi-spherical morphology. Scanning electron microscope (SEM) and powder X-ray diffraction (XRD) were employed to characterize the resulting products. SEM image showed that the phosphor particles were of quasi-spherical shape with the diameter in the range of 1 approximately 3 microm. X-ray diffraction patterns of the resulting samples displayed pure MgSrAl10O17 phase after annealed at 1270 degrees C for 3 h. The effects of annealing temperature, parameters on crystalline phase evolution and photoluminescence intensities of the resulting phosphor were also studied. Upon excitation with UV irradiation, MgSrAl10O17:Eu2+ shows a strong blue emission at 468 nm corresponding to 4f65d1 --> S7/2 transition of Eu2+, which has potential applications in fluorescent lamps and plasma display panels.
authors.affiliation: State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, Dalian 116012, PR China.
authors.forename: Jinghui
authors.initials: J
authors.lastname: Wang
authors.forename: Junwei
authors.initials: J
authors.lastname: Ye
authors.forename: Hongchang
authors.initials: H
authors.lastname: Pang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Lin
authors.forename: Guiling
authors.initials: G
authors.lastname: Ning