Structural Characterization of Lead Titanate Film Synthesized by Hydrothermal Method

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概要

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• Structural properties of hydrothermally deposited PbTiO₃ films have been investigated. The films were synthesized in the temperature range from 120 to 180 °C for 24 h. X-ray diffraction (XRD) analysis indicates that all of the deposited films exhibited the tetragonal perovskite single phase. However, {001} diffraction peaks broadened in comparison with {100} diffraction peaks. Structural characterization showed that the films had two regions with different crystallinities. In one region, the PbTiO₃ crystals had a relatively high crystallinity and grew with a preferred orientation in the (001) direction. Furthermore, in this region, the crystallinity of the crystals deposited at a temperature as low as 120 °C was similar to that of the crystals deposited at 180 °C. On the other hand, the PbTiO₃ crystals in another region exhibited a low crystallinity and a random orientation. Consequently, the broadening of the {001} diffraction peaks can be explained by the mixed structure of the two regions with different crystallinities.

• 2011-09-25

著者

• Nii Hiroyuki

  Ube Scientific Analysis Laboratory Inc.

• Koyanagi Tsuyoshi

  Graduate School Of Science And Engineering Yamaguchi University

• Kunishige Atsuhiro

  Ube Scientific Analysis Laboratory Inc.

• Nakagawa Hamazo

  Ube Scientific Analysis Laboratory Inc.

• Nii Hiroyuki

  UBE Scientific Analysis Laboratory, Inc., Ube, Yamaguchi 755-8633, Japan

• Kunishige Atsuhiro

  UBE Scientific Analysis Laboratory, Inc., Ube, Yamaguchi 755-8633, Japan

• Nakagawa Hamazo

  UBE Scientific Analysis Laboratory, Inc., Ube, Yamaguchi 755-8633, Japan

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