Fully printed and flexible carbon nanotube transistors designed for environmental pressure sensing and aimed at smart tire applications


Conference Paper

© 2017 IEEE. As the sensor infrastructure needed to facilitate the internet-of-things (IoT) rapidly expands, printed electronics have been identified as a key approach for providing low-cost, ubiquitous sensor networks. In this work, we demonstrate the use of a fully printed carbon nanotube thin-film transistor (CNT-TFT) for sensing environmental pressure over a large pressure range. The transconductance of the transistor was found to be directly and linearly correlated with environmental pressure with a sensitivity of 48.1 pS/PSI. We also demonstrate the capability of wirelessly transmitting the data measured by the pressure sensor from within an automobile tire using a simple Bluetooth module. Furthermore, we package the sensor, along with a material thickness sensor developed in previous work, for 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; Mullett, J; Franklin, AD

Published Date

  • December 21, 2017

Published In

Volume / Issue

  • 2017-December /

Start / End Page

  • 1 - 3

Electronic International Standard Serial Number (EISSN)

  • 2168-9229

International Standard Serial Number (ISSN)

  • 1930-0395

International Standard Book Number 13 (ISBN-13)

  • 9781509010127

Digital Object Identifier (DOI)

  • 10.1109/ICSENS.2017.8233875

Citation Source

  • Scopus