Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 24, Pages 20845-20853Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b04775
Keywords
multifunctional device; wearable strain sensor; wearable heater; graphene nanoplatelets; human motion detection
Funding
- Ministry of Business, Innovation & Employment, New Zealand [UOAX1415]
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The demand for stretchable, flexible, and wearable multifunctional devices based on conductive nanomaterials is rapidly increasing considering their interesting applications including human motion detection, robotics, and human-machine interface. There still exists a great challenge to manufacture stretchable, flexible, and wearable devices through a scalable and cost-effective fabrication method. Herein, we report a simple method for the mass production of electrically conductive textiles, made of cotton and wool, by hybridization of graphene nanoplatelets and carbon black particles. Conductive textiles incorporated into a highly elastic elastomer are utilized as highly stretchable and wearable strain sensors and heaters. The electromechanical characterizations of our multifunctional devices establish their excellent performance as wearable strain sensors to monitor various human motions, such as finger, wrist, and knee joint movements, and to recognize sound with high durability. Furthermore, the electrothermal behavior of our devices shows their potential application as stretchable and wearable heaters working at a maximum temperature of 103 degrees C powered with 20 V.
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