Topotactic fluorination of strontium iron oxide thin films using polyvinylidene fluoride

T. Katayama, A. Chikamatsu, Y. Hirose, R. Takagi, H. Kamisaka, T. Fukumura, T. Hasegawa

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We report herein the topotactic fluorination of SrFeO3-δ thin films (δ ∼ 0, 0.5, 1) with polyvinylidene fluoride (PVDF). SrFeO3-xFx epitaxial thin films were obtained by fluorination at 150-270 °C, which is substantially lower than the reaction temperature for polycrystalline bulk samples prepared with PVDF. The fluorine content (x) of the film was widely varied by controlling the PVDF-treatment temperature and/or the amount of oxygen vacancies in the precursor film. The higher reactivity of the SrFeO2 and SrFeO2.5 thin films can be reasonably explained by a fluorine-diffusion mechanism via oxygen vacancies. This journal is

Original languageEnglish
Pages (from-to)5350-5356
Number of pages7
JournalJournal of Materials Chemistry C
Volume2
Issue number27
DOIs
Publication statusPublished - 2014 Jul 21
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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