Transparent film sensor for strain measurement using carbon nanotube networks

W. S. Chang, S. A. Song, J. H. Kim, Chang-Soo Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, experimental results show that sing-wall carbon nanotubes (SWCNTs) change their electronic properties when subjected to strain. In this study, the strain sensing characteristics of SWCNTs networks were investigated to develop a transparent film sensor for strain sensing. The SWCNTs film are formed on flexible substrates of poly(ethylene terephthalate) (PET) using spray process. In this manner we could control the transparency and obtain excellent uniformity of the networked SWCNT film. The carbon nanotube film is isotropic due to randomly oriented bundles of SWCNTs. Using experimental results it is shown that there is a nearly linear change in resistance across the film when it is subjected to tensile stress. The results presented in this study indicate the potential of such films for high sensitive transparent strain sensors on macro scale.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
Pages421-424
Number of pages4
Volume3
Publication statusPublished - 2009 Dec 1
Externally publishedYes
EventNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009 - Houston, TX, United States
Duration: 2009 May 32009 May 7

Other

OtherNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
CountryUnited States
CityHouston, TX
Period09/5/309/5/7

Keywords

  • Electromechanical properties
  • Gage factor
  • Spray deposition
  • Strain sensor
  • SWCNT film

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering
  • Biomaterials

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  • Cite this

    Chang, W. S., Song, S. A., Kim, J. H., & Han, C-S. (2009). Transparent film sensor for strain measurement using carbon nanotube networks. In Technical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009 (Vol. 3, pp. 421-424)