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

被引：63

作者：

Andrews, Joseph B. ^{[1
]}

Cardenas, Jorge A. ^{[1
]}

Lim, Chin Jie ^{[1
]}

Noyce, Steven G. ^{[1
]}

Mullett, Jacob ^{[1
]}

Franklin, Aaron D. ^{[1
]}

机构：

[1] Duke Univ, Dept Elect Engn, Durham, NC 27708 USA

来源：

IEEE SENSORS JOURNAL | 2018年 / 18卷 / 19期

关键词：

Printed transistor; pressure sensor; carbon nanotube; thin-film transistor; Internet of Things; FIELD EFFECT TRANSISTORS; MONITORING-SYSTEM; PERFORMANCE; INTERNET; AREA;

D O I：

10.1109/JSEN.2018.2842139

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：7875 / 7880

页数：6

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