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

Zheng Dong Lin, Sheng Joue Young, Shoou Jinn Chang

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number7350240
Pages (from-to)476-480
Number of pages5
JournalIEEE Transactions on Electron Devices
Volume63
Issue number1
DOIs
Publication statusPublished - 2016 Jan 1

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Carbon nanotube thin films functionalized via loading of au nanoclusters for flexible gas sensors Devices'. Together they form a unique fingerprint.

Cite this