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	Graphene Sterically-Wrapped textile piezoresistive Sensors: A spray coating path for synergistically advancing sensitivity and response range
	Zhang, Chao1,2; Tao, Meng1; Luo, Wei2,3; Zhao, Xinyuan2; Li, Pei2; Gou, Xin2; Li, Zhongyao5; Dong, Chenhui4; Li, Chunbao5; Shi, Haofei2
	2024-09-01
摘要	Trade-off between a high sensitivity and a broad sensing range remains a persistent challenge for flexible pressure sensors. Not to suffer from this dilemma, a flexible textile piezoresistive sensor sterically-wrapped with graphene by spray coating is reported, which constructs enriched three-dimensional conductive networks from leather fabric's inherent fibers and pore structures, synergistically advancing the sensitivity and response range. Such a sensor renders bulky spatial deformation and augmented pressure-induced conducting paths, and hence affords an ultra-high sensitivity of 259.6 kPa(-1)(0-100 kPa) and an exceptional response range of up to 1 MPa. Besides, the graphene/textile sensor demonstrates outstanding durability (>12000 cycles). With these advantages, real-time monitoring of human physiological activities such as wrist pulses and throat swallowing is successfully achieved. Benefitting from the scalability of the spraying methodology, a large-size 45 x 45 cm(2) sensing array with a 32 x 32 matrix is facilely fabricated to map the spatial pressure of human interactive behaviors for ergonomics. And smart insoles incorporating graphene/textile sensors can capture plantar pressure distribution and provide effective analysis for diverse static/dynamic movements of feet. Such spray-coated textile sensors could not only find potential applications in wearable electronics and intelligent robotics, but also open the possibility of monitoring complex heavy machinery and large-scale infrastructures.
关键词	Piezoresistive sensors Spray -coating Leather fabric Graphene Wearable electronics
DOI	10.1016/j.cej.2024.153533
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	495页码:13
通讯作者	Luo, Wei(w.luo@unimelb.edu.au) ; Dong, Chenhui(dong.chenhui@outlook.com) ; Yang, Jun(jyang@cigit.ac.cn)
收录类别	SCI
WOS记录号	WOS:001263193500001
语种	英语