Carbon Nanotube/PEDOT: PSS Composite-based Flexible Temperature Sensor with Enhanced Response and Recovery Time

Conference paper

Oliver Ozioko, Kumaresan, Y. and Dahiya, R. 2020. Carbon Nanotube/PEDOT: PSS Composite-based Flexible Temperature Sensor with Enhanced Response and Recovery Time. 2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE. https://doi.org/10.1109/fleps49123.2020.9239431
AuthorsOliver Ozioko, Kumaresan, Y. and Dahiya, R.
TypeConference paper
Abstract

Temperature sensors with good mechanical flexibility, high sensitivity, fast response and recovery time are essential features for real time measurements by electronic Skin (eSkin). This paper presents the fabrication and characterization of a flexible temperature sensor using PEDOT: PSS and carbon nanotube (CNT) at 1:1 mixing ratio. In order to establish the performance enhancement capability of this composition, a comparative study was carried out. This was done by fabricating two flexible temperature sensors each on ~175μm-thick PVC substrate using only CNT and then with CNT/PEDOT: PSS polymer composite following simple drop casting technique. Both sensors show good sensitivity ~0.27(%)oC -1 )) for CNT and ~0.64(%)oC -1 )) for CNT/PEDOT: PSS for temperatures varying from 20°C to 80°C. Although both the sensors, CNT and CNT/PEDOT: PSS composite revealed fast response and recovery time, the latter shows a higher sensitivity (~0.64 (%)oC -1 )). Further, a comparison of the sensor made with CNT/PEDOT: PSS with similar works in literature reveals that the presented sensor exhibits relatively faster response (~4.8s) and recovery (~2.5s) time. This response enhancement can provide a biomimetic eSkin with unique feature.

KeywordsTemperature sensors; Sensitivity; Robot sensing systems; Skin; Sensors; Time factors; Sensor arrays
Year2020
Conference2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
PublisherIEEE
Digital Object Identifier (DOI)https://doi.org/10.1109/fleps49123.2020.9239431
Web address (URL)https://ieeexplore.ieee.org/document/9239431
Accepted author manuscript
License
All rights reserved
File Access Level
Open
Journal citationpp. 1-4
ISBN978-1-7281-5278-3
Web address (URL) of conference proceedingshttps://ieeexplore.ieee.org/document/9239431
Output statusPublished
Publication dates30 Oct 2020
Publication process dates
Deposited20 Jun 2024
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