Alternating current impedance analysis of CeO2 thick films as odor sensors

Toshio Itoh, Yuko Taguchi, Noriya Izu, Ichiro Matsubara, Shunichi Nakamura, Kengo Suzuki, Keisen Kanda, Woosuck Shin, Maiko Nishibori

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The response of CeO2 to H2S has been investigated by an alternating current (AC) impedance analysis. The AC impedance analysis can divide whole impedance, i.e., identical with direct current resistance, to three type contributions, bulk, grain boundary, and electrode interface. In a case of CeO2, the bulk contribution is the main component of the whole impedance because of clear grain boundary, which is observed by a transmission electron microscope observation. Sensor responses are defined as the quotient of sensor resistance in no odor air and sensor resistance in odor. The sensor responses of bulk contribution are almost identical with those of whole impedance.

本文言語English
ページ(範囲)703-705
ページ数3
ジャーナルSensor Letters
9
2
DOI
出版ステータスPublished - 2011 4
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 電子工学および電気工学

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