Flexible interdigital in-plane supercapacitor based on laser reduced graphene oxide (LRGO)

Engy Nagy Ghoniem*, Ahmed Abd El-Moniem

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


We demonstrated and verified the use of Laser reduced graphene oxide (LRGO) supported on polyethylene terephthalate (PET) substrate for flexible supercapacitor applications. We compared the interdigitated in-plan structure with the conventionally stacked structure supercapacitor. To understand the role of increasing the number of sub-electrodes per unit area, three electrode architecture of 2, 4, and 6 sub-electrodes were studied. Polymeric gel electrolyte of poly (vinyl alcohol) and phosphoric acid (PVA-H3PO4) was selected for the realization of the cells. The interdigital in - plane supercapacitor with 6 sub-electrodes I-PS(6) showed a volumetric capacitance of 9.3 Fcm-3 opposed to 3.6, 0.6, 0.5 Fcm-3 for I-PS(4), I-PS(2), and conventional structure supercapacitor, respectively at 0.1 mA cm-2 current density. The maximum stated energy density of 0.409 mWh.cm-3 and power density of 994.6 W.cm-3 were for I-PS(6). Our results clearly showed that the LRGO can hold much promise for low-cost, easy, and scalable supercapacitor fabrication.

Original languageEnglish
Title of host publicationKey Engineering Materials VI
EditorsAlexander M. Korsunsky, Chobin Makabe, Haider F. Abdul Amir, Tjok Gde Tirta Nindhia
PublisherTrans Tech Publications Ltd
Number of pages7
ISBN (Print)9783038357155
Publication statusPublished - Sept 2016
Externally publishedYes
Event6th International Conference on Key Engineering Materials, ICKEM 2016 - Hong Kong, China
Duration: 12 Mar 201614 Mar 2016

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Conference6th International Conference on Key Engineering Materials, ICKEM 2016
CityHong Kong

Cite this