关键字：NANOCOMPOSITES; COMPOSITES
摘要：Piezoresistive-type flexible strain sensors that accurately translate strain into resistance variation are gaining significant attention for their potential applications in healthcare, sports monitoring, and human-machine interfaces. However, most reported sensors can only respond to strain in specific directions. Multidirectional or even omnidirectional strain sensing is highly desirable but remains a challenge. In this work, we develop highperformance multidirectional piezoresistive strain sensors based on an anisotropic structural carbon nanotube aerogel (CNTA) infilled with polydimethylsiloxane (PDMS). The resulting CNTA/PDMS composites inherit the electrically conductive and deformation-sensitive network of the anisotropic CNTA, leading to high and anisotropic sensitivity to mechanical deformation. In the perpendicular microchannel direction, the gauge factor of CNTA/PDMS is as high as 30 upon 2 % compressive strain. These properties make the CNTA/PDMS composite a high-performance piezoresistive sensor for monitoring human body motion in a multidirectional sensing manner.
卷号：291
期号：
是否译文：否