Preparation of lead titanate ultrathin film using langmuir-blodgett film as precursor

Hiroshi Sugai, Takashi Iijima, Hiroshi Masumoto

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The Langmuir-Blodgett (LB) method is investigated as a process for the fabrication of ultrathin films of oxides such as lead titanate. LB film was fabricated by depositing a monolayer prepared from a fatty acid such as stearic acid (C17H35COOH) and a subphase containing lead chloride (PbCl2) and titanium potassium oxalate (K2TiO (C2O4)2). For converting from an LB film containing lead and titanium to an inorganic film, ultraviolet/ozone (UVO) treatment was applied. Subsequent thermal annealing resulted in a dense oxide ultrathin film. The crystallographic orientation of lead titanate thin films was controlled by conditions of precursor preparation such as the molecular ratio of lead and titanium, pH value and/or temperature in the subphase and the surface pressure. An X-ray diffraction pattern of the thin film indicating a well-defined perovskite structure was observed. Moreover, the results demonstrated the potential application of LB deposition for controlling the crystallographic orientation oflcad titanate ultrathin films, particularly in the (111) or (101)(110) planes.

Original languageEnglish
Pages (from-to)5322-5325
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume38
Issue number9 B
Publication statusPublished - 1999 Dec 1

Keywords

  • Langmuir-blodgett films (LB films)
  • Lead titanate
  • Multilayer
  • Titanium oxalate
  • Ultrathin film

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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