Fabrication of transparent ceria films by spray deposition without post firing

Ruwan Gallage, Atsushi Matsuo, Tomoaki Watanabe, Nobuhiro Matsushita, Masahiro Yoshimura

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

Most of the existing methods of crystalline ceria (CeO2) films preparation consume much time and cost. Here we describe a straightforward and relatively cost-effective method of CeO2 films preparation that involves direct spray deposition process on glass substrates at moderate temperatures (300-400 °C) using cerium acetate precursor in mixture of water and ethanol. X-ray diffraction analysis of obtained films revealed that they were polycrystalline, at least for a certain extent, with cubic fluorite structure and showed the existence of nanocrystallites. Scanning electron microscopic analysis showed that the films were crack-free and consists of nanocrystalline(<10 nm) ceria. Furthermore, the film showed high transparency in the visible and near-infrared region with calculated optical band gap (E g) value of 3.06-3.08 eV. The film formation mechanism to obtain the transparent film has also been proposed.

原文English
頁(從 - 到)33-39
頁數7
期刊Journal of Electroceramics
22
發行號1-3
DOIs
出版狀態Published - 2009 二月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Materials Chemistry

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