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Journal of Materials Science

, Volume 30, Issue 11, pp 2829–2834 | Cite as

Perovskite-type lanthanum chromium-based oxide films prepared by ultrasonic spray pyrolysis

  • A. Furusaki
  • H. Konno
  • R. Furuichi
Papers

Abstract

Ultrasonic spray pyrolysis was used to form 2–8 μm thick LaCrO3 films on different substrates from La(CrO4)(NO3nH2O precursor films. There was an optimum substrate temperature for the formation of uniform precursor films by the spray pyrolysis. When the substrate temperature was lower than 250 °C, dry precursor films were not formed, while above 250 °C the deposition rate decreased with substrate temperature. The precursor films were converted to perovskite-type oxide films by heat treatment at 800 °C in a nitrogen atmosphere. Both A-site substituted (La0.8Ca0.2) CrO3 and B-site substituted La(Cr0.5Mn0.5)O3 oxide films were formed in a similar manner. Electronic conductivity of the oxide films was improved by repetitions of the spray pyrolysis and heat treatment in nitrogen.

Keywords

Heat Treatment Pyrolysis Lanthanum Substrate Temperature Oxide Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • A. Furusaki
    • 1
  • H. Konno
    • 1
  • R. Furuichi
    • 1
  1. 1.Analytical Laboratory, Faculty of EngineeringHokkaido UniversitySapporo-ShiJapan

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