Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 4, Issue 10, Pages -Publisher
WILEY
DOI: 10.1002/admt.201900475
Keywords
all-textile pressure sensors; carbon black; wearable electronics
Categories
Funding
- National Natural Science Foundation of China [51503022, U1663229, 61705026]
- National Key Research and Development Project of China [2018YFB0407102]
- Project of Chongqing Science & Technology Commission [cstc2018jszx-cyzdX0137, cstc2016jcyjA0577, cstc2017jcyjAX0163]
- Scientific and Technological Research Program of Chongqing Municipal Education Commission [KJ1601114, KJ1711267]
- Overseas Returnees Support Program for Innovation and Entrepreneurship of Chongqing [cx2018136]
- Sichuan Science and Technology Department [2018ZYZF0062]
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The rational design of high-performance flexible pressure sensors with both high sensitivity and large workable range attracts great attentions due to the potential applications in wearable electronics and human-machine interfaces. Here, carbon black (CB) from diesel soot, an air pollutant produced during incomplete combustion of hydrocarbon fuels, is used as the active material to construct high-performance flexible all-textile pressure sensors. Due to the unique hierarchical structures and large surface roughness of the CB-coated fabric, the pressure sensor exhibits outstanding performances, such as high sensitivity (81.61 kPa(-1) within the range of 0-10 kPa), extrawide workable pressure regime (0-100 kPa), and rapid response and relaxation time (6 and 30 ms, respectively). Based on these superior sensing properties, its practical applications are demonstrated in detecting the signals of musical sound and of human physiology, showing its potential for health monitoring as wearable electronics.
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