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Shrinkage induced stretchable micro-wrinkled reduced graphene oxide composite with recoverable conductivity

journal contribution
posted on 2015-08-08, 00:00 authored by Chunfang Feng, Zhifeng YiZhifeng Yi, Ludovic DumeeLudovic Dumee, C J Garvey, Fenghua SheFenghua She, Bao Lin, S Lucas, J Schütz, Weimin Gao, Zheng Peng, Lingxue KongLingxue Kong
A novel thermo-mechanical shrinking method is reported to fabricate a three dimensional (3D) stretchable and highly conductive micro-wrinkled reduced graphene oxide (MWrGO) supported on an elastic polydimethylsiloxane (PDMS) substrates. This 3D rGO architecture not only increases the specific area for more electrons to pass through but also bestows stretchability to the conductive pathway. The structural change of micro-wrinkles has been monitored by an in situ straining microscopy. The electrical conductivity of the samples remained fairly constant and stayed above 25 S/m under low deformation (no more than 30% strain) for up to 500 mechanical stretching-release cycles. Additionally, the MWrGO/PDMS composite can be stretched bi-axially because the shrinking process itself is isotropic. This MWrGO based stretchable composite with stable electrical properties and long life span could form a new platform of stretchable electronics.

History

Journal

Carbon

Volume

93

Pagination

878 - 886

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0008-6223

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2015, Elsevier