期刊
NANOMATERIALS
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/nano10040664
关键词
nano carbon black; polydimethylsiloxane; pressure sensors; wearable electronics
类别
资金
- National Key Research and Development Project of China [2018YFB0407100-02]
- National Natural Science Foundation of China [61505018, U1663229, 21603020, 61705026, 51903027, 51903026]
- Sichuan Science and Technology Department [2018ZYZF0062]
- Chongqing Science & Technology Commission [cstc2018jszx-cyzd0603, cstc2017zdcy-yszxX0004, cstc2019jcyjjq0092, cstc2018jszx-cyzdX0137]
- Scientific and Technological Research Program of Chongqing Municipal Education Commission [KJZD-K201901302]
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.
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