Fully Printed and Flexible Carbon Nanotube Transistors for Pressure Sensing in Automobile Tires


Journal Article

© 2001-2012 IEEE. As the need for an increased supply and diversity of sensors expands, printed electronics have been identified as a promising approach for low-cost, ubiquitous sensor networks. In this paper, we demonstrate the use of a fully printed carbon nanotube thin-film transistor (CNT-TFT) for sensing environmental pressure over a pressure range extending from 0 to 42 PSIg. The transconductance of the CNT-TFT was found to be linearly correlated with environmental pressure at a sensitivity of 48.1 pS/PSI. We also demonstrate the capability of wirelessly transmitting the data measured by the pressure sensor using a simple Bluetooth module. Using the Bluetooth system, we observed the sensor's response over time as pressure was dynamically changed. Finally, we packaged the sensor along with a material thickness sensor (developed in previous work) into a fully printed smart tire sensor system capable of mapping tire pressure and tread depth differentials.

Full Text

Duke Authors

Cited Authors

  • Andrews, JB; Cardenas, JA; Lim, CJ; Noyce, SG; Mullett, J; Franklin, AD

Published Date

  • October 1, 2018

Published In

Volume / Issue

  • 18 / 19

Start / End Page

  • 7875 - 7880

International Standard Serial Number (ISSN)

  • 1530-437X

Digital Object Identifier (DOI)

  • 10.1109/JSEN.2018.2842139

Citation Source

  • Scopus