Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment

Porous structure of reduced graphene oxide (rGO) plays an important role in developing flexible graphene-based devices. In this work, we report a novel methodology for reduction of freestanding graphite oxide (GO) sheet by picosecond pulse laser direct writing in liquid nitrogen. Non-agglomerate and...

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Autores principales: Guan, Y. C., Fang, Y. W., Lim, G. C., Zheng, H. Y., Hong, M. H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4922015/
https://www.ncbi.nlm.nih.gov/pubmed/27345474
http://dx.doi.org/10.1038/srep28913
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author Guan, Y. C.
Fang, Y. W.
Lim, G. C.
Zheng, H. Y.
Hong, M. H.
author_facet Guan, Y. C.
Fang, Y. W.
Lim, G. C.
Zheng, H. Y.
Hong, M. H.
author_sort Guan, Y. C.
collection PubMed
description Porous structure of reduced graphene oxide (rGO) plays an important role in developing flexible graphene-based devices. In this work, we report a novel methodology for reduction of freestanding graphite oxide (GO) sheet by picosecond pulse laser direct writing in liquid nitrogen. Non-agglomerate and porous structure of rGO is fabricated successfully due to frozen effect during laser processing. Compared with laser-irradiated rGO developed in N(2) gas at ambient environment, the frozen rGO developed in liquid N(2) shows better ordered structure with less defects, crack-free morphology as well as better electron supercapacitor performance including 50–60 Ω/sq in sheet electrical resistance. Mechanism of cryotemperature photoreduction GO is also discussed.
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spelling pubmed-49220152016-06-28 Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment Guan, Y. C. Fang, Y. W. Lim, G. C. Zheng, H. Y. Hong, M. H. Sci Rep Article Porous structure of reduced graphene oxide (rGO) plays an important role in developing flexible graphene-based devices. In this work, we report a novel methodology for reduction of freestanding graphite oxide (GO) sheet by picosecond pulse laser direct writing in liquid nitrogen. Non-agglomerate and porous structure of rGO is fabricated successfully due to frozen effect during laser processing. Compared with laser-irradiated rGO developed in N(2) gas at ambient environment, the frozen rGO developed in liquid N(2) shows better ordered structure with less defects, crack-free morphology as well as better electron supercapacitor performance including 50–60 Ω/sq in sheet electrical resistance. Mechanism of cryotemperature photoreduction GO is also discussed. Nature Publishing Group 2016-06-27 /pmc/articles/PMC4922015/ /pubmed/27345474 http://dx.doi.org/10.1038/srep28913 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Guan, Y. C.
Fang, Y. W.
Lim, G. C.
Zheng, H. Y.
Hong, M. H.
Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title_full Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title_fullStr Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title_full_unstemmed Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title_short Fabrication of Laser-reduced Graphene Oxide in Liquid Nitrogen Environment
title_sort fabrication of laser-reduced graphene oxide in liquid nitrogen environment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4922015/
https://www.ncbi.nlm.nih.gov/pubmed/27345474
http://dx.doi.org/10.1038/srep28913
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