title: Preparation and characterization of upconversion luminescent NaYF4:Yb, Er (Tm)/PS bulk transparent nanocomposites through in situ polymerization.
abstract: The in situ polymerization method was applied to synthesize bulk nanocomposites consisting of hydrophobic NaYF(4):Yb, Er (Tm) nanoparticles as the filler and polystyrene (PS) as the host material. The oleic acid stabilized NaYF(4):Yb, Er (Tm) nanoparticles and NaYF(4):Yb, Er (Tm)/PS nanocomposites have been well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), the thermogravimetric analysis (TGA), upconversion photoluminescence spectra and luminescence decays. The well-crystallized NaYF(4):Yb, Er (Tm) nanoparticles are spherical with a mean diameter of 40 nm. NaYF(4):Yb, Er/PS and NaYF(4):Yb, Tm/PS nanocomposites exhibit strong green and blue upconversion photoluminescence upon 980 nm laser excitation, due to the integration of luminescent NaYF(4):Yb, Er and NaYF(4):Yb, Tm nanoparticles, respectively. These nanocomposites can be potentially used as 3D display materials.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
authors.forename: Ruitao
authors.initials: R
authors.lastname: Chai
authors.forename: Hongzhou
authors.initials: H
authors.lastname: Lian
authors.forename: Ziyong
authors.initials: Z
authors.lastname: Cheng
authors.forename: Cuimiao
authors.initials: C
authors.lastname: Zhang
authors.forename: Zhiyao
authors.initials: Z
authors.lastname: Hou
authors.forename: Zhenhe
authors.initials: Z
authors.lastname: Xu
authors.forename: Jun
authors.initials: J
authors.lastname: Lin
mesh_terms: D005459:Fluorides / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods; D008855:Microscopy, Electron, Scanning; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D011137:Polystyrenes; C525362:sodium yttriumtetrafluoride; D015019:Yttrium; D005459:Fluorides