Fabrication of carbon nanotube-coated fabric for highly sensitive pressure sensor

Soonjae Pyo, Eunhwan Jo, Dae Sung Kwon, Wondo Kim, Wook Chang, Jongbaeg Kim

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

2 Citations (Scopus)

Abstract

We have developed a highly sensitive pressure sensor using carbon nanotube (CNT)-coated polyester fabric. With simple and cost-effective dip-coating process using CNT ink, we produced conductive polyester fabric, and its resistance could be controlled easily by modulating dipping number. When the pressure is applied, the highly porous structure of the fabric allows the dramatic improvement of the mechanical contacts between fibers, leading to more electrical contacts in the CNT networks. The fabric also showed high mechanical flexibility and robustness against bending, without any significant electrical degradation. We observed a decrease in resistance of the fabricated sensor under external pressure and the maximum sensitivity of the sensor reached ∼10.63%/kPa for pressure up to 10kPa, which is two orders of magnitude higher than that of the existing CNT-polymer composite-based pressure sensors. The proposed sensor could serve as a flexible and cheap pressure sensing solution for wearable electronics or human-machine interface.

Original languageEnglish
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages962-965
Number of pages4
ISBN (Electronic)9781538627310
DOIs
Publication statusPublished - 2017 Jul 26
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: 2017 Jun 182017 Jun 22

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

Other19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
CountryTaiwan, Province of China
CityKaohsiung
Period17/6/1817/6/22

All Science Journal Classification (ASJC) codes

  • Chemical Health and Safety
  • Instrumentation
  • Electrical and Electronic Engineering

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  • Cite this

    Pyo, S., Jo, E., Kwon, D. S., Kim, W., Chang, W., & Kim, J. (2017). Fabrication of carbon nanotube-coated fabric for highly sensitive pressure sensor. In TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 962-965). [7994210] (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2017.7994210