Study of proton-conducting oxides by artificial modulation of dopant distribution

D. Hondo, T. Tsurui, N. Kuwata, N. Sata, F. Iguchi, H. Yugami

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Artificial lattices are synthesized by alternate deposition of the SrZrO3 (SZO) and the Y2O3 (SZO/Y artificial lattice) by Pulsed Laser Deposition (PLD) process to investigate the role of dopant cations in the proton migration. The XRD analysis of SZO/Y artificial lattices show that they are highly oriented in [001] direction epitaxially both on STO(001) and MgO(001) substrates similarly like SZO thin films. The HREM cross sectional views of SZO/Y artificial lattices show that the interface of the SZO layer and Y layer is very flat and the SZO can grow epitaxially even when Y layers are inserted. From the electric conductivity measurements, the main carrier of the SZO/Y artificial lattice is found to be proton.

Original languageEnglish
Pages (from-to)685-690
Number of pages6
JournalSolid State Ionics
Volume178
Issue number7-10
DOIs
Publication statusPublished - 2007 Apr

Keywords

  • Dopant distribution
  • Proton conductor
  • Pulsed laser deposition

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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