Ultraviolet-light-induced desorption of oxygen from SrTiO3 surfaces

• Toru Hara

• Takashi Ishiguro

• Kazuo Shinozaki

Bibliographic Information

Other Title

• Ultraviolet light induced desorption of oxygen from SrTiO3 surfaces

Abstract

We have previously reported that SrTiO 3 -based thin films can be used to detect trace amounts of oxygen (e.g., down to 0.001 ppt). However, the SrTiO 3 surfaces are highly active against oxygen adsorption. Therefore, the slow desorption response can affect the response speed of the sensors against the sudden change in oxygen concentration. We have reported that UV light irradiation is effective for accelerating oxygen desorption, and in this paper, we will show that the increase in the irradiation intensity of UV light can be an efficient way of improving the response speed. As an example, an apparent hysteresis in the sensor resistance versus oxygen concentration curve, which is shown after the UV irradiation at a low intensity, diminishes after the UV irradiation at a high intensity, even after short-lasting treatments.

Journal

• Japanese journal of applied physics : JJAP

  Japanese journal of applied physics : JJAP 50 (4), 041502-, 2011-04

  Tokyo : The Japan Society of Applied Physics

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1520009407045230080
• NII Article ID: 40018800872
• NII Book ID: AA12295836
• ISSN: 00214922
• ISSN: 13474065
• DOI: 10.1143/jjap.50.041502
• NDL BIB ID: 11075406
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11075406
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.041502
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.041502/pdf
• Text Lang: en
• NDL Source Classification:
  • ZM35(科学技術--物理学)
• Data Source:
  • NDL
  • Crossref
  • CiNii Articles