Effect of grain size on the response to oxygen gas of CuFeTe2 ceramics

Yuta Tokunaga, Masatoshi Kozaki, Hisao Kuriyaki, Kiyoshi Toko

研究成果: Contribution to journalArticle査読

抄録

Oxygen gas sensor based on oxygen intercalation in the layered semiconductor CuFeTe2 has been developed. In this study, fine powder was obtained by pulverizing CuFeTe2 single crystal. Three groups with the range of grain size: 0 - 20 μm, 20 - 40 μm and 40 - 63 μm, was divided by sieves from the powder. CuFeTe2 ceramics was synthesized with each group. We measured the response to oxygen gas of these ceramics. Sensitivity is defined as a saturation value of resistance change rate when oxygen intercalation occurs. It has been shown from experimental results that the sensitivity improved by 7.0 times with making grain size smaller from 40 - 63 μm to 0 - 20 μm.

本文言語英語
ページ(範囲)422-425
ページ数4
ジャーナルIEEJ Transactions on Sensors and Micromachines
137
12
DOI
出版ステータス出版済み - 1 1 2017

All Science Journal Classification (ASJC) codes

  • 機械工学
  • 電子工学および電気工学

フィンガープリント

「Effect of grain size on the response to oxygen gas of CuFeTe<sub>2</sub> ceramics」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル