Ajayan, Pulickel M.
Cai, Le, Song, Li, Luan, Pingshan, et al.. "Super-stretchable, Transparent Carbon Nanotube-Based Capacitive Strain Sensors for Human Motion Detection." Scientific Reports, 3, (2013) http://dx.doi.org/10.1038/srep03048.
Realization of advanced bio-interactive electronic devices requires mechanically compliant sensors with the
ability to detect extremely large strain. Here, we design a new multifunctional carbon nanotube (CNT) based
capacitive strain sensors which can detect strains up to 300% with excellent durability even after thousands
of cycles. The CNT-based strain gauge devices exhibit deterministic and linear capacitive response
throughout the whole strain range with a gauge factor very close to the predicted value (strictly 1),
representing the highest sensitivity value. The strain tests reveal the presented strain gauge with excellent
dynamic sensing ability without overshoot or relaxation, and ultrafast response at sub-second scale.
Coupling these superior sensing capabilities to the high transparency, physical robustness and flexibility, we
believe the designed stretchable multifunctional CNT-based strain gauge may have various potential
applications in human friendly and wearable smart electronics, subsequently demonstrated by our
prototypical data glove and respiration monitor.
Super-stretchable, Transparent Carbon Nanotube-Based Capacitive Strain Sensors for Human Motion Detection
|dc.subject.keyword||sensors and biosensors
carbon nanotubes and fullerenes
Nature Publishing Group