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Multi-functional stretchable sensors based on a 3D-rGO wrinkled microarchitecture

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Abstract

The structural design of sensing active layers plays a critical role in the development of electromechanical sensors. In this study, we established an innovative concept for constructing sensors, pre-straining & laser reduction (PS&LR), based on a laser-induced wrinkle effect. This method combines and highlights the advantages of a wrinkled structure in the flexibility of sensors and the advantages of laser in the efficient reduction of GO; thus, it can efficiently introduce tunable, stretchable 3D-rGO expansion bulges in wrinkled GO films. Particularly, the sensors based on this special structure (1.5 cm × 3 cm) demonstrated a multi-functional and distinguished sensing ability in the cases of bending, stretching and touching modes. Moreover, the 3D-rGO architecture endowed the sensors with great sensitivity and design flexibility, i.e., a high sensing factor of 122, relative current value change of 60 times at the bending angle of 60°, decreased relative resistance–strain curve and diverse bending strategies for various detection purposes. Thus, the established design and preparation strategy provides large design flexibility for various promising applications.

Graphical abstract: Multi-functional stretchable sensors based on a 3D-rGO wrinkled microarchitecture

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Publication details

The article was received on 08 Jul 2019, accepted on 23 Sep 2019 and first published on 27 Sep 2019


Article type: Paper
DOI: 10.1039/C9NA00429G
Nanoscale Adv., 2019, Advance Article
  • Open access: Creative Commons BY license
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    Multi-functional stretchable sensors based on a 3D-rGO wrinkled microarchitecture

    J. Jia, G. Huang, M. Wang, Y. Lv, X. Chen, J. Deng and K. Pan, Nanoscale Adv., 2019, Advance Article , DOI: 10.1039/C9NA00429G

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