Chemistry of the alkoxy-derived precursor solutions for layer-structured perovskite thin films

Kazumi Kato, Can Zheng, Sandwip Dey, Yasuyoshi Torii

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Scopus citations


Precursors for layer-structured perovskite thin films of SrBi 2Ta 2O 9, or SBT, and SrBi 2Nb 2O 9, or SBN were prepared by the reactions of a Sr-Bi double methoxyethoxide and Ta and/or Nb methoxyethoxide in methoxyethanol, followed by partial hydrolysis. Several analytical techniques such as 1H-, 13C- and 93Nb-NMR and FT-IR were used to determine the arrangement of the metals and oxygen in the precursor molecules. The precursors contain Sr-O-M (M; Ta or Nb) bonds (i.e., a Sr connects two MO 6 octahedra), and Sr-O-Bi bonds with Bi atom bonded to the MO 6 octahedron. This structure is similar to the layer-structured perovskite crystal sub-lattice. This is the origin of the low temperature crystallization.

Original languageEnglish (US)
Title of host publicationIntegrated Ferroelectrics
Number of pages11
StatePublished - 1998


  • Molecular structure of precursors
  • Sol-gel processing
  • SrBi Ta O -SrBi Nb O
  • Sub-lattice of layer-structured perovskite

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics


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