Issue 11, 2019

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

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

Supplementary files

Article information

Article type
Paper
Submitted
08 Jul 2019
Accepted
23 Sep 2019
First published
27 Sep 2019
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2019,1, 4406-4414

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, 1, 4406 DOI: 10.1039/C9NA00429G

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