title: Facile fabrication and upconversion luminescence enhancement of LaF3:Yb3+/Ln3+@SiO2 (Ln = Er, Tm) nanostructures decorated with Ag nanoparticles.
abstract: A novel hybrid nanostructure, that is a Ag nanoparticle decorated LaF(3):Yb(3+)/Ln(3+)@SiO(2) nanosphere (Ln=Er, Tm), was constructed by a facile strategy, and characterized by XRD, TEM, FTIR, XPS and UV-vis-NIR absorption. Obvious spectral broadening and red-shift on the surface plasmon resonance were obtained by adjusting the size and configuration of Ag nanoparticles. Effective upconversion luminescence enhancements for Er(3+) and Tm(3+) containing samples were obtained. It is suggested that the luminescence enhancement results from both the excitation and emission processes, and the configuration of the studied hybrid nanostructure is an efficient system to enhance the luminescence emission of rare earth doped nanomaterials. It is believed that the enhancement from the hybrid nanostructure will find great potential in the development of photovoltaic solar cells.
authors.forename: Enjie
authors.initials: E
authors.lastname: He
authors.forename: Hairong
authors.initials: H
authors.lastname: Zheng
authors.forename: Jun
authors.initials: J
authors.lastname: Dong
authors.forename: Wei
authors.initials: W
authors.lastname: Gao
authors.forename: Qingyan
authors.initials: Q
authors.lastname: Han
authors.forename: Junna
authors.initials: J
authors.lastname: Li
authors.forename: Le
authors.initials: L
authors.lastname: Hui
authors.forename: Ying
authors.initials: Y
authors.lastname: Lu
authors.forename: Huani
authors.initials: H
authors.lastname: Tian
mesh_terms: D003952:Diagnostic Imaging; D004871:Erbium / Q000737:chemistry; D020342:Finite Element Analysis; D007811:Lanthanum / Q000737:chemistry; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D056951:Photoelectron Spectroscopy; D012821:Silanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D012993:Solar Energy; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D019265:Spectroscopy, Near-Infrared; D020349:Surface Plasmon Resonance; D013932:Thulium / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D012821:Silanes; D012834:Silver; D007811:Lanthanum; D012822:Silicon Dioxide; D004871:Erbium; D013932:Thulium