Extremely Elastic Wearable Carbon Nanotube Fiber Strain Sensor for Monitoring of Human Motion
Massachusetts Institute of Technology · Singapore University of Technology and Design
Abstract
The increasing demand for wearable electronic devices has made the development of highly elastic strain sensors that can monitor various physical parameters an essential factor for realizing next generation electronics. Here, we report an ultrahigh stretchable and wearable device fabricated from dry-spun carbon nanotube (CNT) fibers. Stretching the highly oriented CNT fibers grown on a flexible substrate (Ecoflex) induces a constant decrease in the conductive pathways and contact areas between nanotubes depending on the stretching distance; this enables CNT fibers to behave as highly sensitive strain sensors. Owing to its unique structure and mechanism, this device can be stretched by over 900% while retaining…
Citation impact
- FWCI
- 37.47
- Percentile
- 100%
- References
- 39
Authors
7- SRSeongwoo RyuCorresponding
Massachusetts Institute of Technology, Singapore University of Technology and Design
- PLPhillip Lee
Massachusetts Institute of Technology
- JBJeffrey B. Chou
Massachusetts Institute of Technology
- RXRuize Xu
Massachusetts Institute of Technology
- RZRong Zhao
Singapore University of Technology and Design
Topics & keywords
- Materials science
- Carbon nanotube
- Gauge factor
- Nanotechnology
- Wearable technology
- Durability
- Wearable computer
- Strain gauge