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Fabrication of SWCNTs Based Flexible, Trace Level NO2 Gas Sensor Using Spray Coating Technique

  • Prabhash Mishra
  • Neha Tabassum
  • Choksh Bhola
  • Vaibhav Sharma
  • Kamran Zaidi
  • Manish Gupta
  • Harsh
  • S. S. Islam
Conference paper
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Flexible nitrogen dioxide (NO2) sensor using thin-film single-walled carbon nanotubes (SWCNTs) was fabricated by spray coating on Polyethylene terephthalate (PET) substrate. The SWCNTs dispersed in deionized water using sodium dodecyl sulphate (SDS) as the surfactant. The uniformly dispersed SWCNTs were deposited on the PET film by using spray gun, and then SDS surfactant was removed from the sample for its proper gas sensing. This was done by dipping the sample into the HNO3 and then washing with the deionized water followed by heat treatment at 110 °C for 1 h. The resultant devices were tested for sensing NO2 molecules and a trace level NO2 sensing was detected. The sensing mechanism was attributed by the electron transfer to the SWCNTs, as a result, the NO2 reduced on the nanotube surface.

Keywords

Carbon nanotube PET substrate NO2 gas sensor and spray coating 

References

  1. 1.
    Kwang Soo Yoo. Gas Sensors for Monitoring Air Pollution, Monitoring, Control and Effects of AirPollution, Prof. Andrzej G. Chmielewski (Ed.), ISBN: 978-953-307-526-6, InTech (2011).Google Scholar
  2. 2.
    K. Arshak, E. Moore, G.M. Lyons, J. Harris and S. Clifford, Sensor Review, 24, 181 (2004).CrossRefGoogle Scholar
  3. 3.
    A. Hhierlemann, O. Brand, C. Hagleitner and H. Baltes, Proceedings of the IEEE, 91, 839 (2003).CrossRefGoogle Scholar
  4. 4.
    P. Mishra, N.H. Tai, Harsh, S.S. Islam, Materials Research Bulletin, 48, 2804 (2013).CrossRefGoogle Scholar
  5. 5.
    Y. B. Kim, Trans. Electr. Electron. Mater., 12, 175 (2011).Google Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Prabhash Mishra
    • 1
  • Neha Tabassum
    • 1
  • Choksh Bhola
    • 1
  • Vaibhav Sharma
    • 1
  • Kamran Zaidi
    • 1
  • Manish Gupta
    • 1
  • Harsh
    • 1
  • S. S. Islam
    • 1
  1. 1.Nano-Sensor Research Laboratory, F/O Engineering and TechnologyJamia Millia IslamiaNew DelhiIndia

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