title: Photoluminescence of rare earth phosphors Na0.5Gd 0.5WO4: RE3+ and Na 0.5Gd 0.5(Mo0.75W0.25)O4: RE3+ (RE=Eu, Sm, Dy).
abstract: Two series of phosphors, Na(0.5)Gd(0.5)WO(4): RE(3+) and Na(0.5)Gd(0.5)(Mo(0.75)W(0.25))O(4): RE(3+) (RE = Eu, Sm, Dy) have been synthesized by hydrothermal process to obtain the high purity, which have been characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM). The results suggest that Na(0.5)Gd(0.5)(Mo(0.75)W(0.25))O(4): RE(3+) phosphors are more easily to crystallize than Na(0.5)Gd(0.5)WO(4): RE(3+) ones. Both of them present the characteristic luminescence of Eu(3+), Sm(3+) and Dy(3+). Especially the photoluminescent properties of Na(0.5)Gd(0.5)WO(4): x%Eu(3+) (Sm(3+)) can be obtained to show white luminescence as the suitable doping concentration of Eu(3+) or Sm(3+).
authors.affiliation: Department of Chemistry, Tongji University, Shanghai, People's Republic of China. byan@tongji.edu.cn
authors.forename: Bing
authors.initials: B
authors.lastname: Yan
authors.forename: Lixia
authors.initials: L
authors.lastname: Lin
authors.forename: Jianhua
authors.initials: J
authors.lastname: Wu
authors.forename: Fang
authors.initials: F
authors.lastname: Lei