Size-Independent and Ultrahigh CO Gas Sensor Based on TiO2 Modified ZnO Tetrapods

Theerapong Santhaveesuk, Kengo Shimanoe, Koichi Suematsu, Supab Choopun

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

ZnO tetrapods modified by TiO2 powder are synthesized using a simple fast thermal oxidation method, and theirs CO sensing properties are investigated. The ZnO tetrapods modified by TiO2 powder sensor is tested at 250–400 °C under different CO concentrations compared with pure ZnO tetrapods, ZnO nanoparticle, and ZnO powder sensors. With a good crystallinity and a high pore size, the ZnO tetrapods modified by TiO2 powder sensor shows the highest sensing response compared to other sensors, exhibiting a size-independent property for CO. Additionally, the response time of ZnO tetrapods modified by TiO2 powder sensor is reduced. The improvement of the sensing properties is attributed to microstructure, lattice, surface area, and conductance modification of TiO2 additive together with a high diffusion process deeply inside the sensing layer through the large pore size.

本文言語英語
論文番号1700784
ジャーナルPhysica Status Solidi (A) Applications and Materials Science
215
14
DOI
出版ステータス出版済み - 7 24 2018

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「Size-Independent and Ultrahigh CO Gas Sensor Based on TiO<sub>2</sub> Modified ZnO Tetrapods」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