Preparation of epitaxial BaTiO3 thin films by the dipping-pyrolysis process


Epitaxial BaTiO3 thin films were prepared on SrTiO3 (100) substrates by the dipping-pyrolysis process using metal naphthenates as starting materials. Highly oriented BaTiO3 thin films were crystallized by heat treatment at 800 °C and higher, from amorphous precursor films pyrolyzed at 470 °C. XRD pole-figure and reciprocal-space mapping analyses showed that the films were epitaxially grown on SrTiO3 substrates and were pseudocubic phase with an a||/a ratio of 1.003, smaller than the c0/a0 ratio (=1.011) of bulk tetragonal BaTiO3.

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Kim, S., Manabe, T., Yamaguchi, I. et al. Preparation of epitaxial BaTiO3 thin films by the dipping-pyrolysis process. Journal of Materials Research 12, 1141–1144 (1997).

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