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Photoluminescence properties of the rare-earth ions in the TiO2host nanofibers prepared via electrospinning

Authors
Journal
Materials Research Bulletin
0025-5408
Publisher
Elsevier
Publication Date
Volume
44
Issue
2
Identifiers
DOI: 10.1016/j.materresbull.2008.05.001
Keywords
  • A. Composites
  • A. Nanostructures
  • D. Luminescent

Abstract

Abstract Luminescent rare-earth (RE) ions doped TiO 2 nanofibers have been prepared by electrospinning of a mixture solution of rare-earth acetylacetone (RE(C 5H 7O 2) 3)/titanium tetraisopropoxide (Ti (OiPr) 4)/poly(vinyl pyrrolidone) (PVP) (RE = Eu, Er, Ce, Pr), followed by calcination at high temperature. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) analyses demonstrated the morphology and the structure of the rare-earth doped TiO 2 nanofibers. Exciting the nanofibers results in an energy transfer from surface states of TiO 2 to that of the rare-earth ions and the photoluminescence is observed from the crystal field states of the rare-earth ions.

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