期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 317, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2020.112437
关键词
Ag nanoparticles; Carbon nanotube; Polydimethylsiloxane; Piezoresistive effect; Wearable devices; Electronic skin
资金
- Ministry of Science and Technology (Taiwan) [108-2627M-005-001-, 108-2113-M-005-002-, 109-2627-M-005-001-, 109-2113-M-005-010-]
A green and efficient strategy for constructing a sensitive wearable piezoresistive sensor has been reported, with good sensing performances under different pressure loading, bending angle, and elongation conditions. Finger movement recognition is achieved by testing exceptional resistance change, proving the practicality of the sensor in wearable electronics.
Fabricating flexible/stretchable physical sensors has emerged as a topic of interest owing to the huge market demand for wearable medical devices and electronic skins for the regular and continuous monitoring of human health information. Herein, we report a green and efficient strategy for constructing a sensitive polydimethylsiloxane-derived wearable piezoresistive sensor, based on silver nanoparticle (AgNP)@multi-walled carbon nanotube (CNT) nanocomposite films. The developed sensing material exhibits good flexibility and electrical conductivity because of the interfacial effect between AgNPs and CNTs, leading to excellent sensing performances with good sensitivity, fast response time, low operating voltage, and mechanical stability, as measured under different pressure loading, bending angle, and percentage elongation conditions. In addition, finger movement recognition is sampled by testing the exceptional resistance change, and its practicality was further proven. Thus, the developed material has potential for application in wearable electronics. Notably, the entire sensor fabrication process is low-cost, environment-friendly, scalable, and industrially available, which is beneficial for industrial applications. (C) 2020 Elsevier B.V. All rights reserved.
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