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Article
Direct-Write Stretchable Sensors Using Single-Walled Carbon Nanotube/Polymer Matrix
Journal of Electronic Packaging, Transactions of the ASME
  • Morteza Vatani, University of Akron, Main Campus
  • Yangfen Lu, University of Akron, main campus
  • Kye-Shin Lee, University of Akron, Main Campus
  • Ho-Chan Kim
  • Jae-Won Choi, University of Akron, Main Campus
Document Type
Article
Publication Date
2-1-2013
Abstract

There have been increasing demands and interests in stretchable sensors with the development of flexible or stretchable conductive materials. These sensors can be used for detecting large strain, 3D deformation, and a free-form shape. In this work, a stretchable conductive sensor has been developed using single-walled carbon nanotubes (SWCNTs) and monofunctional acrylate monomers (cyclic trimethylolpropane formal acrylate and acrylate ester). The suggested sensors have been fabricated using a screw-driven microdispensing direct-write (DW) technology. To demonstrate the capabilities of the DW system, effects of dispensing parameters such as the feed rate and material flow rate on created line widths were investigated. Finally, a stretchable conductive sensor was fabricated using proper dispensing parameters, and an experiment for stretchability and resistance change was accomplished. The result showed that the sensor had a large strain range up to 90% with a linear resistance change and gauge factor ∼2.7. Based on the results, it is expected that the suggested DW stretchable sensor can be used in many application areas such as wearable electronics, tactile sensors, 3D structural electronics, etc.

Citation Information
Morteza Vatani, Yangfen Lu, Kye-Shin Lee, Ho-Chan Kim, et al.. "Direct-Write Stretchable Sensors Using Single-Walled Carbon Nanotube/Polymer Matrix" Journal of Electronic Packaging, Transactions of the ASME Vol. 135 Iss. 1 (2013) p. 011009 - 011009
Available at: http://works.bepress.com/jae-won_choi/2/