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Open AccessArticle

Nano Carbon Black-Based High Performance Wearable Pressure Sensors

State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Jianshe North Road, Chengdu 610054, China
Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Honghe Avenue, Chongqing 402160, China
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 664;
Received: 26 February 2020 / Revised: 26 March 2020 / Accepted: 28 March 2020 / Published: 2 April 2020
(This article belongs to the Special Issue Carbon-Based Nanomaterials for (Bio)Sensors Development)
The reasonable design pattern of flexible pressure sensors with excellent performance and prominent features including high sensitivity and a relatively wide workable linear range has attracted significant attention owing to their potential application in the advanced wearable electronics and artificial intelligence fields. Herein, nano carbon black from kerosene soot, an atmospheric pollutant generated during the insufficient burning of hydrocarbon fuels, was utilized as the conductive material with a bottom interdigitated textile electrode screen printed using silver paste to construct a piezoresistive pressure sensor with prominent performance. Owing to the distinct loose porous structure, the lumpy surface roughness of the fabric electrodes, and the softness of polydimethylsiloxane, the piezoresistive pressure sensor exhibited superior detection performance, including high sensitivity (31.63 kPa−1 within the range of 0–2 kPa), a relatively large feasible range (0–15 kPa), a low detection limit (2.26 pa), and a rapid response time (15 ms). Thus, these sensors act as outstanding candidates for detecting the human physiological signal and large-scale limb movement, showing their broad range of application prospects in the advanced wearable electronics field. View Full-Text
Keywords: nano carbon black; polydimethylsiloxane; pressure sensors; wearable electronics nano carbon black; polydimethylsiloxane; pressure sensors; wearable electronics
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MDPI and ACS Style

Hu, J.; Yu, J.; Li, Y.; Liao, X.; Yan, X.; Li, L. Nano Carbon Black-Based High Performance Wearable Pressure Sensors. Nanomaterials 2020, 10, 664.

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