Epitaxial growth of atomically flat gadolinia-doped ceria thin films by pulsed laser deposition

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Abstract

Epitaxial growth of Ce0.8Gd0.2O2(CGO) films on (001) TiO2-terminated SrTiO3 substrates by pulsed laser deposition was investigated using in situ reflective high energy electron diffraction. The initial film growth shows a Stransky–Krastanov growth mode. However, this three-dimensional island formation is replaced by a two-dimensional island nucleation during further deposition, which results in atomically smooth CGO films. The obtained high-quality CGO films may be attractive for the electrolyte of solid-oxide fuel cells operating at low temperature.
Original languageEnglish
JournalApplied Physics A: Materials Science & Processing
Volume105
Issue number3
Pages (from-to)697-701
ISSN0947-8396
DOIs
Publication statusPublished - 2011

Keywords

  • Solid Oxide Fuel Cells

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