Wang, Zubin;
Jiang, Saihua;
Huang, Yubin;
Song, Tao;
Liufu, Chaokang;
Huang, Yangchun;
Zhou, Gang;
... Attia, Nour F; + view all
(2024)
Dual Sensing Signal Decoupling Based on Thermoelectric Polymer Aerogels for Precise Temperature and Pressure Recognition.
Advanced Materials Technologies
, Article 2400096. 10.1002/admt.202400096.
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Abstract
The capability to emulate skin-like temperature and pressure sensing is fundamental for next-generation artificial intelligence products. However, detecting temperature and pressure simultaneously with a single sensor without signal interference is challenging. Herein, a novel PCC aerogel sensor composed of PEDOT:PSS, CNTs, and CNF via directional freezing technology is developed. The PCC sensor can decouple temperature and pressure stimuli into individual voltage and resistance signals. It exhibits high-precision temperature sensing capabilities, boasting an exceptionally high Seebeck coefficient of 30.4 µV K-1 and the ability to detect temperature variations as low as 0.1 K. PCC sensors show excellent sensitivity and fast response times for detecting static and dynamic pressures, as well as high stability after 1000 cycles. Its maximum pressure sensitivity can reach 159.1% kPa⁻¹, and the lowest detection limit is 10 Pa. Additionally, its excellent thermoelectric properties also enable to generating thermopower from human skin for self-powered pressure sensing. A 3×3 PCC sensor array has been proposed to simulate the unique features of human skin in temperature and pressure recognition. This work provides a scalable manufacturing strategy for multi-functional tactile sensors.
| Type: | Article |
|---|---|
| Title: | Dual Sensing Signal Decoupling Based on Thermoelectric Polymer Aerogels for Precise Temperature and Pressure Recognition |
| DOI: | 10.1002/admt.202400096 |
| Publisher version: | https://doi.org/10.1002/admt.202400096 |
| Language: | English |
| Additional information: | This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | aerogel, multi-functional sensors, temperature and pressure sensing, thermoelectric effect |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS 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 Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10192584 |
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