Microstructure and ionic conductivity of alternating-multilayer structured Gd-doped ceria and zirconia thin films

Yiguang Wang, Linan An, L. V. Saraf, C. M. Wang, V. Shutthanandan, D. E. McCready, S. Thevuthasan

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Multilayer thin film of Gd-doped ceria and zirconia have been grown by sputter-deposition on α-Al2O3 (0001) substrates. The films were characterized using X-ray diffraction (XRD), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The Gd-doped ceria and zirconia layers had the fluorite structure and are highly textured such that the (111) plane of the films parallel to the (0001) plane of the α-Al2O3. The epitaxial relationship can be written as ( 1 1 1)ZrO2/CeO 2//(000 1)Al23 and [ 11 2ZrO 2CeO2//[ - 2 1 10]23, respectively. The absence of Ce3+ features in the XPS spectra indicates that the Gd-doped ceria films are completely oxidized. The ionic conductivity of this structure shows great improvement as compared with that of the bulk crystalline material. This research provides insight on designing of material for low temperature electrolyte applications.

Original languageEnglish
Pages (from-to)2021-2026
Number of pages6
JournalJournal of Materials Science
Volume44
Issue number8
DOIs
Publication statusPublished - Apr 2009
Externally publishedYes

Fingerprint

Cerium compounds
Ionic conductivity
Zirconia
Multilayers
Thin films
Microstructure
X ray photoelectron spectroscopy
Sputter deposition
Fluorspar
Multilayer films
Electrolytes
Atomic force microscopy
Crystalline materials
Transmission electron microscopy
X ray diffraction
Substrates
zirconium oxide
Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Wang, Y., An, L., Saraf, L. V., Wang, C. M., Shutthanandan, V., McCready, D. E., & Thevuthasan, S. (2009). Microstructure and ionic conductivity of alternating-multilayer structured Gd-doped ceria and zirconia thin films. Journal of Materials Science, 44(8), 2021-2026. https://doi.org/10.1007/s10853-009-3269-2

Microstructure and ionic conductivity of alternating-multilayer structured Gd-doped ceria and zirconia thin films. / Wang, Yiguang; An, Linan; Saraf, L. V.; Wang, C. M.; Shutthanandan, V.; McCready, D. E.; Thevuthasan, S.

In: Journal of Materials Science, Vol. 44, No. 8, 04.2009, p. 2021-2026.

Research output: Contribution to journalArticle

Wang, Y, An, L, Saraf, LV, Wang, CM, Shutthanandan, V, McCready, DE & Thevuthasan, S 2009, 'Microstructure and ionic conductivity of alternating-multilayer structured Gd-doped ceria and zirconia thin films', Journal of Materials Science, vol. 44, no. 8, pp. 2021-2026. https://doi.org/10.1007/s10853-009-3269-2
Wang, Yiguang ; An, Linan ; Saraf, L. V. ; Wang, C. M. ; Shutthanandan, V. ; McCready, D. E. ; Thevuthasan, S. / Microstructure and ionic conductivity of alternating-multilayer structured Gd-doped ceria and zirconia thin films. In: Journal of Materials Science. 2009 ; Vol. 44, No. 8. pp. 2021-2026.
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