Anomalous Expansion of CeO2 Nanocrystalline Membranes

Jaya P. Nair, Ellen Wachtel, Igor Lubomirsky, Juergen Fleig, Joachim Maier

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

The mechanical and chemical processes occurring in undoped nanocrystalline CeO2 membranes due to order-disorder transition of oxygen vacancies were analyzed. 1.5±0.2 μm thick CeO2 films were deposited by radio frequency (RF) magnetron plasma sputtering on silicon. The nanocrystalline membranes were studied using x-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). It was found that the order-disorder transition led to a large lateral expansion and buckling of the membranes.

Original languageEnglish
Pages (from-to)2077-2081
Number of pages5
JournalAdvanced Materials
Volume15
Issue number24
DOIs
StatePublished - 17 Dec 2003
Externally publishedYes

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