期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 1, 页码 2100-2109出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c21075
关键词
reduced graphene oxide; pen ink/PVA; strain sensor; humidity sensor; wearable electronics
资金
- National Natural Science Foundation of China [U1830108]
- Innovation Foundation of Shanghai Aerospace Science and Technology [SAST2018-061]
- program of China Scholarships Council [201906100112]
Recent advances in sensor technology have allowed for monitoring of physiological signals in the human body, providing potential for healthcare applications. Challenges still remain in creating sensors that are wearable and compatible with the human body, but innovative solutions are being developed to address these issues.
Sensitive and flexible sensors capable of monitoring physiological signals of human body for healthcare have been developed in recent years. It is still a challenge to fabricate a wearable sensor-integrated multifunctional performances and a good fit to human body. Here, an rGO and pen ink/PVA-layered strain-humidity sensor based on MS fabric is prepared through a cost-effective and scalable solution process. The conductive fabric as a strain sensor has a workable strain range (similar to 300%), ultrahigh sensitivity (maximum gauge factor of 492.8), great comfort, and long-term stability. Notably, a step increase in relative resistance variation will be achieved by controlling the coverage of an ink layer. Moreover, the reliable linear humidity-dependent resistance void of hysteresis and excellent repeatability renders conductive fabrics an opportunity as humidity sensors. Based on these superior multifunctions, the resultant conductive fabric can be applied to detect both human motions and skin humidity, showing potential in applications of wearable electronics for professional athletes.
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