Multifunctional pressure/temperature/bending sensor made of carbon fibre-multiwall carbon nanotubes for artificial electronic application

Journal Article (2022)
Author(s)

Hao Wang (Nanjing University of Aeronautics and Astronautics, TU Delft - Aerospace Manufacturing Technologies)

Jie Tao (Nanjing University of Aeronautics and Astronautics)

Kai Jin (Ocean University of China)

Xiaoyue Wang (Nanjing University of Aeronautics and Astronautics)

Ying Dong (Nanjing University of Aeronautics and Astronautics)

Research Group
Aerospace Manufacturing Technologies
Copyright
© 2022 H. Wang, Jie Tao, Kai Jin, Xiaoyue Wang, Ying Dong
DOI related publication
https://doi.org/10.1016/j.compositesa.2021.106796
More Info
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Publication Year
2022
Language
English
Copyright
© 2022 H. Wang, Jie Tao, Kai Jin, Xiaoyue Wang, Ying Dong
Research Group
Aerospace Manufacturing Technologies
Bibliographical Note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. @en
Volume number
154
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Abstract

A flexible sensor with excellent pressure, temperature, and bending sensitivity is fabricated based on the conductive skeleton material with hierarchical porous structure. The conductive skeleton material is composed of carbon fibres (CFs) and multiwalled carbon nanotubes (MWCNTs), in which lay perpendicular to each other CFs are used as conductive frames, while MWCNTs are served as bridges to connect the CFs and increase the conductive network formation. Owing to the unique structure and the conductive materials, the as-prepared sensor exhibits a high-pressure sensing performance of 42.7 kPa (0–1 kPa), fast response, relaxation times of<100 ms, wide working range of 0–60 kPa, and high stability over more than 6000 cycles. Furthermore, the fabricated sensor presents a high thermal sensitivity of 2.46 °C−1 between 30 and 40 °C, excellent bending sensitivity of 95.5 % rad−1 in the working range of 0–180°, and great flexibility (over 1000 cycles), demonstrating its potential applications in multifunctional wearable electronics.

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