Green Emitting Phosphor M3(PO4)2: Ce, Tb (M=Mg, Ca, Sr, Ba) Prepared by Co-Precipitation Method
The M<,3-3x>(PO<,4>)<,2>: 2xCe, xTb (M=Mg, Ca, Sr, Ba) phosphors were prepared by coprecipitation in this paper. Their phase structures, morphologies and luminescent properties were investigated by X-ray diffractometer, field emission scanning electron microscopy and fluorospectrophotometer. The results indicate that the Ce<3+> and Tb<3+> enteres the host lattice because the XRD patterns of alkaline earth phosphate show no impurity phase, the SEM shows the spherical particles with an average size about 1μm. The emission and excitation spectra are similar to rare earth phosphate. Concentration quenching of the Sr<,3>(PO<,4>) <,2>: Ce, Tb emission intensity was not observed even when the Tb<3+> increases to 0.05, while the maximum emission intensity appears when x=0.04 in M<,3-3x(PO<,4>)<,2>: 2xCe, xTb (M=Ca, Ba) emission spectrum.
alkali earth phosphate green phosphor co-precipitation method luminescent rare earths
Dong Limin(董丽敏) Zhang Yaoming(张耀明) Han Zhidong(韩志东) Wu Ze(吴泽) Zhang Xianyou(张显友)
College of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
290-293
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）