NO 2 response enhancement and anomalous behavior of n-type SnO 2 nanowires functionalized by Pd nanodots

N. M. Shaalan*, T. Yamazaki, T. Kikuta

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

36 被引用数 (Scopus)

抄録

Tin dioxide nanowires were formed by using thermal evaporation and functionalized by Pd nanodots for investigating the effect of nano-additives on NO 2 sensing properties. SnO 2 nanowires are uniformly functionalized with Pd nanodots by plain micro-drop process of PdCl 2. The NO 2 sensing characteristics of the Pd-functionalized SnO 2 nanowires are compared with those of bare SnO 2 nanowires. The results indicate that the concentration of catalytic Pd nanodots plays an important role in the enhancement of NO 2 sensing properties. The low concentration of Pd nanodots greatly enhances the sensor response and response time in SnO 2 nanowire-based gas sensors. However, extensive addition of Pd into the sensing layer resulted in the degradation of sensing characteristics. Moreover, the SnO 2 nanowires functionalized with excessively high concentration of Pd nanodots shows an anomalous behavior in its output.

本文言語英語
ページ(範囲)671-677
ページ数7
ジャーナルSensors and Actuators, B: Chemical
166-167
DOI
出版ステータス出版済み - 2012/05/20

ASJC Scopus 主題領域

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「NO 2 response enhancement and anomalous behavior of n-type SnO 2 nanowires functionalized by Pd nanodots」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