Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 4, Issue 8, Pages 4288-4295Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b00783
Keywords
Strain sensor; Flexible; Resistive; Biomass; Wearable electronics
Categories
Funding
- Khalifa University Internal Research Funds [210038]
- National Natural Science Foundation of China [51373187, 51573200]
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We introduce a simple method to fabricate a highly flexible resistive-type strain sensor composed of carbon paper (CP) and polydimethylsiloxane (PDMS) elastomer. The key resistance sensitive material of the sensor, carbon paper, is prepared from tissue paper by a simple high-temperature pyrolysis process. At the same time, the as-fabricated CP/PDMS strain senor is highly sensitive to applied strain with a gauge factor of 25.3, almost 10 times higher than that of conventional metallic strain gauge. Furthermore, the response of CP/PDMS strain sensor under cyclic tensile strain with a peak strain of 3% was also investigated, which exhibits fast and steady response with excellent durability within the frequency range 0.01-10 Hz. Finally, we demonstrate the successful utilization of the CP/PDMS strain sensor as wearable electronics in breath monitoring and robot controlling. The eminent performance, low material cost, and facile fabrication process make the CP/PDMS strain sensor exceptionally promising in flexible, stretchable, and wearable electronics.
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