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Synthesis and characterization of HA/YVO4: Yb3+, Er3+up-conversion luminescent nano-rods

Authors
Journal
Ceramics International
0272-8842
Publisher
Elsevier
Volume
40
Issue
7
Identifiers
DOI: 10.1016/j.ceramint.2014.03.127
Keywords
  • A. Sol–Gel Processes
  • B. Surfaces
  • Up-Conversion Luminescence
  • Ha/Yvo4: Yb3+
  • Er3+
Disciplines
  • Physics

Abstract

Abstract In this paper, hydroxyapatite (HA) nano-rods have been successfully functionalized by depositing YVO4: Yb3+, Er3+ up-converting nanoparticles on the surfaces via a facile sol–gel technique. X-ray diffraction, field emission scanning electron microscopy, energy disperse X-ray spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and photoluminescence spectra were used to characterize the structure, morphology and up-conversion luminescent properties of the samples. The results indicate that the HA nano-rods have been successfully coated by YVO4: Yb3+, Er3+ up-converting nanoparticles, and the samples exhibit bright green up-conversion luminescence upon the excitation of a 980nm diode laser. Furthermore, the optical intensity of the composites can be controlled by varying the depositing cycles of YVO4: Yb3+, Er3+ up-converting nanoparticles. This up-conversion luminescent HA may find important applications in the fields of in vivo bio-imaging and a drug delivery system.

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