Flexible and stackable laser-induced graphene supercapacitors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Zhiwei Peng
  • Jian Lin
  • Ruquan Ye
  • Errol L. G. Samuel
  • James M. Tour

Detail(s)

Original languageEnglish
Pages (from-to)3414-3419
Number of pages6
Journal / PublicationACS Applied Materials and Interfaces
Volume7
Issue number5
Online published13 Jan 2015
Publication statusPublished - 11 Feb 2015
Externally publishedYes

Abstract

In this paper, we demonstrate that by simple laser induction, commercial polyimide films can be readily transformed into porous graphene for the fabrication of flexible, solid-state supercapacitors. Two different solid-state electrolyte supercapacitors are described, namely vertically stacked graphene supercapacitors and in-plane graphene microsupercapacitors, each with enhanced electrochemical performance, cyclability, and flexibility. Devices with a solid-state polymeric electrolyte exhibit areal capacitance of >9 mF/cm2 at a current density of 0.02 mA/cm2, more than twice that of conventional aqueous electrolytes. Moreover, laser induction on both sides of polyimide sheets enables the fabrication of vertically stacked supercapacitors to multiply its electrochemical performance while preserving device flexibility.

Research Area(s)

  • flexible, graphene, laser, scalable, solid-state, stacking, supercapacitor

Citation Format(s)

Flexible and stackable laser-induced graphene supercapacitors. / Peng, Zhiwei; Lin, Jian; Ye, Ruquan; Samuel, Errol L. G.; Tour, James M.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 5, 11.02.2015, p. 3414-3419.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review