期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 44, 页码 53271-53281出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c17165
关键词
superhydrophobic; multifunctional sensing; pressure sensing; water-level detection; temperature sensing
资金
- National Natural Science Foundation of China [51972063, 22075046]
- Natural Science Funds for Distinguished Young Scholar of Fujian Province [2020J06038]
- Natural Science Foundation of Fujian Province [2019J01256]
- China Postdoctoral Science Foundation [2019TQ0061]
- 111 Project [D17005]
Flexible wearable pressure sensors have important applications in human-machine interaction, human behavior detection, medical diagnosis, and other fields. A highly sensitive, stable, and multifunctional sensor for the detection of pressure, water level, and temperature has been developed in this study, showing potential application prospects.
Flexible wearable pressure sensors have attracted great interest from researchers in recent years because of their important applications in human-machine interaction, human behavior detection, medical diagnosis, and other fields. At present, integrating multiple functions such as pressure and temperature sensing and self-cleaning into a single material remains a challenging task. Here, by in situ reduction of graphene oxide (GO) grown on a sponge surface and deposition of polypyrrole (PPy) nanoparticles, we have built a highly sensitive, stable, and multifunctional rGO/PPy/poly(dimethylsiloxane) (PDMS) polyurethane (PU) sponge (GPPS) sensor for the detection of pressure, water level, and temperature. This multifunctional sensor shows excellent pressure-sensing performance, ultrasensitive loading sensing of a leaf (98 mg), and outstanding reproducibility over 5000 cycles. Due to the stability of the superhydrophobic surface water contact angle (WCA) = 153.3 degrees, our sensor can work in an underwater environment, which can sense water levels from 1 cm (similar to 98 Pa) to 40 cm and also a variety of underwater behaviors (knock, ultrasonication, blow, etc.) with high stability. In addition, the sensor can be integrated into a circuit for the water level and pressure detection. The sensor can also be used as a smart underwater-temperature sensor; it shows a linear temperature coefficient of resistance (TCR) of 0.48% degrees C-1 in a temperature range of 35-80 degrees C. This multifunctional sensor shows potential application prospects in wearable electronic devices for sensing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据