KMS Chongqing Institute of Green and Intelligent Technology, CAS
Graphene Sterically-Wrapped textile piezoresistive Sensors: A spray coating path for synergistically advancing sensitivity and response range | |
Zhang, Chao1,2![]() ![]() ![]() ![]() | |
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
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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 |