Two-photon-induced stretchable graphene supercapacitors

Thekkekara, L, Chen, X and Gu, M 2018, 'Two-photon-induced stretchable graphene supercapacitors', Scientific Reports, vol. 8, no. 1, pp. 1-9.

Document type: Journal Article
Collection: Journal Articles

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Title Two-photon-induced stretchable graphene supercapacitors
Author(s) Thekkekara, L
Chen, X
Gu, M
Year 2018
Journal name Scientific Reports
Volume number 8
Issue number 1
Start page 1
End page 9
Total pages 9
Publisher Nature Publishing Group
Abstract Direct laser writing with an ultrashort laser beam pulses has emerged as a cost-effective single step technology for realizing high spatial resolution features of three-dimensional structures in confined footprints with potential for large area fabrication. Here we present the two-photon direct laser writing technology to develop high-performance stretchable biomimetic three-dimensional micro-supercapacitors with the fractal electrode distance down to 1 µm. With multilayered graphene oxide films, we show the charge transfer capability enhanced by order of 102 while the energy storage density exceeds the results in current lithium-ion batteries. The stretchability and the volumetric capacitance are increased to 150% and 86 mF/cm3 (0.181 mF/cm2), respectively. This additive nanofabrication method is highly desirable for the development of self-sustainable stretchable energy storage integrated with wearable technologies. The flexible and stretchable energy storage with a high energy density opens the new opportunity for on-chip sensing, imaging, and monitoring.
Subject Biomedical Engineering not elsewhere classified
DOI - identifier 10.1038/s41598-018-30194-2
Copyright notice © 2018. The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. To view a copy of this license, visit
ISSN 2045-2322
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