Zhou, B;
Li, C;
Zhou, Y;
Liu, Z;
Gao, X;
Wang, X;
Jiang, L;
... Yu, J; + view all
(2022)
A flexible dual-mode pressure sensor with ultra-high sensitivity based on BTO@MWCNTs core-shell nanofibers.
Composites Science and Technology
, 224
, Article 109478. 10.1016/j.compscitech.2022.109478.
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Abstract
Wearable flexible sensors have developed rapidly in recent years because of their improved capacity to detect human motion in wide-ranging situations. In order to meet the requirements of flexibility and low detection limits, a new pressure sensor was fabricated based on electrospun barium titanate/multi-wall carbon nanotubes (BTO@MWCNTs) core-shell nanofibers coated with styrene-ethylene-butene-styrene block copolymer (SEBS). The sensor material (BTO@MWCNTs/SEBS) had a SEBS to BTO/MWCNTs mass ratio of 20:1 and exhibited an excellent piezoelectricity over a wide range of workable pressures from 1 to 50 kPa, higher output current of 56.37 nA and a superior piezoresistivity over a broad working range of 20–110 kPa in compression. The sensor also exhibited good durability and repeatability under different pressures and under long-term cyclic loading. These properties make the composite ideal for applications requiring monitoring subtle pressure changes (exhalation, pulse rate) and finger movements. The pressure sensor developed based on BTO@MWCNTs core-shell nanofibers has demonstrated great potential to be assembled into intelligent wearable devices.
| Type: | Article |
|---|---|
| Title: | A flexible dual-mode pressure sensor with ultra-high sensitivity based on BTO@MWCNTs core-shell nanofibers |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.compscitech.2022.109478 |
| Publisher version: | https://doi.org/10.1016/j.compscitech.2022.109478 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License Funder: National Natural Science Foundation of China, the Postdoctoral Science Foundation of China and Taishan Scholar Foundation of Shandong, China. See: https://creativecommons.org/licenses/by-nc-sa/4.0/ |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10149074 |
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