In-situ observation of the electrical conductivity upon release and uptake of oxygen in indium tin oxide sinter

Takahisa Omata, Hiroyuki Fujiwara, Shinya Otsuka-Yao-Matsuo, Naoki Ono

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The electrical conductivity, the oxygen release and uptake of sintered indium tin oxide (ITO) upon heating and cooling under the condition that P(O2)/P* = 4.9 × 10-4 (P*=atmospheric pressure), when P(O2) was approximately 50 Pa, were simultaneously observed. Two kinds of oxygen release and uptake were detected in the different temperature ranges of 973 < T < 1130 K and 1130 < T < 1273 K. Electrical conductivity was increased as a result of the increase in carrier concentration due to oxygen release at the higher temperature, although the conductivity was not altered by the oxygen release at the lower temperature. Decrease in the mobility of conduction electrons could be explained in terms of the increase in the concentration of the scattering centers induced by release and uptake of oxygen atoms.

本文言語English
ページ(範囲)868-871
ページ数4
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
37
3 A
DOI
出版ステータスPublished - 1998 3
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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