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 |
巻 | 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