Recent developments in soft, solution processing: One step fabrication of functional double oxide films by hydrothermal-electrochemical methods

Masahiro Yoshimura, Wojciech Suchanek, Kyoo Seung Han

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Based upon thermodynamic considerations, we propose 'soft, solution processing', as a means to fabrication of shaped, sized, and controlled advanced materials from aqueous solutions without excess heat, energy consumption, expensive equipment, and precursor(s) as one of the most economical and environmentally friendly preparation techniques for advanced materials. We have succeeded in the fabrication of double oxide films such as BaTiO3, SrTiO3, their solid solutions, and LiNiO2 at fixed temperatures between 60 and 150 °C by hydrothermal-electrochemical methods. Nucleation and growth of the films takes place at the interface between the alkaline (earth) component in the solutions and anodically treated metal plates. The structures and properties of these films are described. A novel method to fabricate BaTiO3/SrTiO3 layered thin films by changing the solution compositions in flow-cell equipment is presented.

Original languageEnglish
Pages (from-to)77-82
Number of pages6
JournalJournal of Materials Chemistry
Volume9
Issue number1
DOIs
Publication statusPublished - 1999 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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