Carbon nanotube thin films functionalized via loading of au nanoclusters for flexible gas sensors Devices

Zheng Dong Lin, Sheng Joue Young, Shoou Jinn Chang

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

Carbon nanotubes (CNTs) have been demonstrated to be one of the most interesting materials for gas sensing. This paper applies a simple method for the direct transfer of high-density CNTs from a SiO2/Si substrate to a flexible substrate for carbon dioxide (CO2), ammonia (NH3), and isopropyl alcohol gas sensing at room temperature. The flexible gas sensor exhibited high sensitivities of 4.8%, 5.4%, and 5.2% at room temperature for ambient CO2, NH3, and isopropyl alcohol gas concentrations of 800 ppm, respectively. In addition, the gas response of the CNT-based chemiresistor is attributed to p-type conductivity in the Au-modified semiconducting CNTs. Very good repeatability of the sensor response to gas concentration is demonstrated, representing a major step toward the low-cost large-scale production of this class of device.

原文English
文章編號7350240
頁(從 - 到)476-480
頁數5
期刊IEEE Transactions on Electron Devices
63
發行號1
DOIs
出版狀態Published - 2016 一月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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