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Nanofiber Based Er(III) Metal Pyrochlore Oxides: Synthesis and Characterization

Published online by Cambridge University Press:  01 February 2011

Ruofeng Wang ,
Edward T. Bender ,
Mohannad T. Aljarrah ,
Edward A. Evans  and
Rex D. Ramsier
Ruofeng Wang
Affiliation:
ruofeng@uakron.edu, The University of Akron, Department of Chemical and Biomolecular Engineering, Whitby Hall Room 211, The University of Akron, Akron, OH, 44325-3906, United States, 3309726944, 3309725856
Edward T. Bender
Affiliation:
etb5@uakron.edu, The University of Akron, Department of Physics, Leigh Hall Room 412, The University of Akron, Akron, OH, 44325, United States
Mohannad T. Aljarrah
Affiliation:
mta9@uakron.edu, The University of Akron, Department of Chemical and Biomolecular Engineering, Whitby Hall Room 211, The University of Akron, Akron, OH, 44325-3906, United States
Edward A. Evans
Affiliation:
evanse@uakron.edu, The University of Akron, Department of Chemical and Biomolecular Engineering, Whitby Hall Room 211, The University of Akron, Akron, OH, 44325-3906, United States
Rex D. Ramsier
Affiliation:
rex@uakron.edu, The University of Akron, Department of Physics, Leigh Hall Room 412, The University of Akron, Akron, OH, 44325, United States
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Abstract

Erbium(III) doped TiO2 nanofibers (Er2Ti2O7) have been synthesized by electrospinning mixtures of polymers, metal-containing materials, and erbium acetate. These electrospun nanofibers were subsequently annealed at temperatures of 550, 750, 950, and 1150 oC to remove the organics and leave behind the metal oxides. The crystal structure and optical properties of the nanofiber pyrochlores were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transformation IR (FTIR) spectroscopy. Different crystal structures were formed by controlling the annealing conditions. XRD data are compared with near-IR spectra to better understand the effects of annealing temperature on the Er (III) thermally-excited selective optical emission process.

Keywords

Ernanostructurethermionic emission
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1023: Symposium JJ – Functional Nanoscale Ceramics for Energy Systems , 2007 , 1023-JJ05-07
Copyright
Copyright © Materials Research Society 2007

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