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Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications

Abdelkader, Amr M; Karim, Nazmul; Vall�s, Cristina; Afroj, Shaila; Novoselov, Kostya S; Yeates, Stephen G

Authors

Amr M Abdelkader

Nazmul Karim

Cristina Vall�s

Shaila Afroj

Kostya S Novoselov

Stephen G Yeates



Abstract

© 2017 IOP Publishing Ltd Printed graphene supercapacitors have the potential to empower tomorrow’s wearable electronics. We report a solid-state flexible supercapacitor device printed on textiles using graphene oxide ink and a screen-printing technique. After printing, graphene oxide was reduced in situ via a rapid electrochemical method avoiding the use of any reducing reagents that may damage the textile substrates. The printed electrodes exhibited excellent mechanical stability due to the strong interaction between the ink and textile substrate. The unique hierarchical porous structure of the electrodes facilitated ionic diffusion and maximised the surface area available for the electrolyte/ active material interface. The obtained device showed outstanding cyclic stability over 10 000 cycles and maintained excellent mechanical flexibility, which is necessary for wearable applications. The simple printing technique is readily scalable and avoids the problems associated with fabricating supercapacitor devices made of conductive yarn, as previously reported in the literature.

Journal Article Type Article
Acceptance Date Jul 4, 2017
Online Publication Date Jul 24, 2017
Publication Date Sep 1, 2017
Deposit Date Dec 8, 2019
Publicly Available Date Dec 9, 2019
Journal 2D Materials
Electronic ISSN 2053-1583
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 4
Issue 3
Pages 035016
DOI https://doi.org/10.1088/2053-1583/aa7d71
Public URL https://uwe-repository.worktribe.com/output/4789611
Additional Information Journal title: 2D Materials; Article type: paper; Article title: Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications; Copyright information: © 2017 IOP Publishing Ltd; License information: cc-by Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Date received: 2017-03-31; Date accepted: 2017-07-04; Online publication date: 2017-07-24

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Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.

Any further distribution of this work must maintain attribution to the
author(s) and the title of the work, journal citation and DOI.





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