Enhanced Sensitivity of Patterned Graphene Strain Sensors Used for Monitoring Subtle Human Body Motions

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With the growth of the wearable electronics industry, structural modifications of sensing materials have been widely attempted to improve the sensitivity of sensors. Herein, we demonstrate patterned graphene strain sensors, which can monitor small-scale motions by using the simple, scalable, and solutionprocessable method. The electrical properties of the sensors are easily tuned via repetition of the layer-by-layer assembly, leading to increment of thickness of the conducting layers. In contrast to nonpatterned sensors, the patterned sensors show enhanced sensitivity and the ability to distinguish subtle motions, such as similar phonations and 81 beats per minute of pulse rate.
Publisher
AMER CHEMICAL SOC
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

POLY(VINYL ALCOHOL); CARBON NANOTUBES; GRAPHITE OXIDE; TRANSPARENT; FILMS; NANOCOMPOSITES; PRESSURE

Citation

ACS APPLIED MATERIALS & INTERFACES, v.9, no.12, pp.11176 - 11183

ISSN
1944-8244
DOI
10.1021/acsami.7b01551
URI
http://hdl.handle.net/10203/223451
Appears in Collection
CBE-Journal Papers(저널논문)
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