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http://dx.doi.org/10.3795/KSME-B.2009.33.10.773

Fabrication of Carbon Nanotube Strain Sensors  

Chang, Won-Seok (한국기계연구원, 나노융합기계연구본부)
Song, Sun-Ah (한국기계연구원, 나노융합기계연구본부)
Kim, Jae-Hyun (한국기계연구원, 나노융합기계연구본부)
Han, Chang-Soo (한국기계연구원, 나노융합기계연구본부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.10, 2009 , pp. 773-777 More about this Journal
Abstract
In this study, the strain sensing characteristics of single-wall carbon nanotubes(SWCNTs) networks were investigated to develop a 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.
Keywords
Carbon Nanotube; Strain Sensor; Polymer Film; Spray;
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