title: One-step synthesis and luminescent properties of nanocrystalline YVO4:Eu3+ powders.
abstract: In this paper, nanocrystalline YVO4:Eu3+ powders have been successfully synthesized via high-temperature solution-phase synthesis process. The nanocrystalline YVO4:Eu3+ particles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV/Nis absorption spectra and luminescence spectra, luminescence decay curve and Fourier transform infrared (FT-IR), X-ray photoelectron spectra (XPS) respectively. The as-prepared nanocrystalline YVO4:Eu3+ particles are well crystallized with ellipsoidal morphology. The emission of YVO4:Eu3+ particles show emission originating from the 5D0 level, with 5D0-7F2 at 616 nm as the most prominent group. The excitation spectrum fits basically with the absorption spectrum from the vanadate ions. FT-IR and XPS spectra indicate that the surface ligands of nanocrystalline particles were oleic acid and oleylamine. The lifetime for the luminescence of Eu3+ in the as-prepared YVO4:Eu3+ samples are shorter than that of the bulk material due to the absorption of organic ligands on the nanoparticle surface.
authors.affiliation: State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
authors.forename: Deyan
authors.initials: D
authors.lastname: Kong
authors.forename: Zhenling
authors.initials: Z
authors.lastname: Wang
authors.forename: Cuikun
authors.initials: C
authors.lastname: Lin
authors.forename: Piaoping
authors.initials: P
authors.lastname: Yang
authors.forename: Zewei
authors.initials: Z
authors.lastname: Quan
authors.forename: Jun
authors.initials: J
authors.lastname: Lin