Wearable and Stretchable Strain Sensors: Materials, Sensing Mechanisms, and Applications

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Recent advances in the design and implementation of wearable resistive, capacitive, and optical strain sensors are summarized herein. Wearable and stretchable strain sensors have received extensive research interest due to their applications in personalized healthcare, human motion detection, human–machine interfaces, soft robotics, and beyond. The disconnection of overlapped nanomaterials, reversible opening/closing of microcracks in sensing films, and alteration of the tunneling resistance have been successfully adopted to develop high‐performance resistive‐type sensors. On the other hand, the sensing behavior of capacitive‐type and optical strain sensors is largely governed by their geometrical changes under stretching/releasing cycles. The sensor design parameters, including stretchability, sensitivity, linearity, hysteresis, and dynamic durability, are comprehensively discussed. Finally, the promising applications of wearable strain sensors are highlighted in detail. Although considerable progress has been made so far, wearable strain sensors are still in their prototype stage, and several challenges in the manufacturing of integrated and multifunctional strain sensors should be yet tackled.
Publisher
Wiley
Issue Date
2020-08
Language
English
Article Type
Review
Citation

Advanced Intelligent Systems, v.2, no.8, pp.2000039

ISSN
2640-4567
DOI
10.1002/aisy.202000039
URI
http://hdl.handle.net/10203/279880
Appears in Collection
ME-Journal Papers(저널논문)
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