Short‐Circuit Diffusion of Ba, Sr, and O during ATiO3 (A = Ba, Sr) Thin‐Film Growth by the Hydrothermal–Electrochemical Method

Koji Kajiyoshi, Kunisaburo Tomono, Yukio Hamaji, Toru Kasanami, Masahiro Yoshimura

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The mass transport mechanism during the hydrothermal‐electrochemical growth of polycrystalline thin films of ATiO3 (A = Ba, Sr) perovskite onto Ti electrodes in A(OH)2solutions has been studied by a tracer technique, using Ba and 18O atoms as respective tracers for A‐site and oxygen atoms in SrTiO3 host films. It was found that the ATiO3film grows at the film/electrode interface by transport of both A‐site and oxygen atoms from the solution to the interface. A‐site and oxygen atoms are considered to diffuse as constituents of solution species, such as A2+, OH, and H2O, through open short‐circuit paths existing at grain boundaries.

Original languageEnglish
Pages (from-to)1521-1531
Number of pages11
JournalJournal of the American Ceramic Society
Volume78
Issue number6
DOIs
Publication statusPublished - 1995 Jun

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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