Oxygen-free highly conductive graphene papers

Graphene papers have a potential to overcome the gap from nanoscale graphene to real macroscale applications of graphene. A unique process for preparation of highly conductive graphene thin paper by means of Ar+ ion irradiation of graphene oxide (GO) papers, with carbon/oxygen ratio reduced to 100:1...

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Main Authors: Šimek, Petr, Sofer, Zdeněk, Jankovský, Ondřej, Sedmidubský, David, Pumera, Martin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/99462
http://hdl.handle.net/10220/19630
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-994622020-03-07T12:34:45Z Oxygen-free highly conductive graphene papers Šimek, Petr Sofer, Zdeněk Jankovský, Ondřej Sedmidubský, David Pumera, Martin School of Physical and Mathematical Sciences DRNTU::Science::Chemistry Graphene papers have a potential to overcome the gap from nanoscale graphene to real macroscale applications of graphene. A unique process for preparation of highly conductive graphene thin paper by means of Ar+ ion irradiation of graphene oxide (GO) papers, with carbon/oxygen ratio reduced to 100:1, is presented. The composition of graphene paper in terms of carbon/oxygen ratio and in terms of types of individual oxygen-containing groups is monitored throughout the process. Angle-resolved high resolution X-ray photoelectron spectroscopy helps to investigate the depth profile of carbon and oxygen within reduced GO paper. C/O ratios over 100 on the surface and 40 in bulk material are observed. In order to bring insight to the processes of oxygen removal from GO paper by low energy Ar+ ion bombardment, the gases released during the irradiation are analyzed by mass spectroscopy. It is proven that Ar+ ion beam can be applied as a technique for fabrication of highly reduced graphene papers with high conductivities. Such highly conductive graphene papers have great potential to be used in application for construction of microelectronic and sensor devices. 2014-06-10T07:07:40Z 2019-12-06T20:07:46Z 2014-06-10T07:07:40Z 2019-12-06T20:07:46Z 2014 2014 Journal Article Šimek, P., Sofer, Z., Jankovský, O., Sedmidubský, D., & Pumera, M. (2014). Oxygen-Free Highly Conductive Graphene Papers. Advanced Functional Materials, 24(31), 4878-4885. 1616-301X https://hdl.handle.net/10356/99462 http://hdl.handle.net/10220/19630 10.1002/adfm.201304284 en Advanced functional materials © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Chemistry
spellingShingle DRNTU::Science::Chemistry
Šimek, Petr
Sofer, Zdeněk
Jankovský, Ondřej
Sedmidubský, David
Pumera, Martin
Oxygen-free highly conductive graphene papers
description Graphene papers have a potential to overcome the gap from nanoscale graphene to real macroscale applications of graphene. A unique process for preparation of highly conductive graphene thin paper by means of Ar+ ion irradiation of graphene oxide (GO) papers, with carbon/oxygen ratio reduced to 100:1, is presented. The composition of graphene paper in terms of carbon/oxygen ratio and in terms of types of individual oxygen-containing groups is monitored throughout the process. Angle-resolved high resolution X-ray photoelectron spectroscopy helps to investigate the depth profile of carbon and oxygen within reduced GO paper. C/O ratios over 100 on the surface and 40 in bulk material are observed. In order to bring insight to the processes of oxygen removal from GO paper by low energy Ar+ ion bombardment, the gases released during the irradiation are analyzed by mass spectroscopy. It is proven that Ar+ ion beam can be applied as a technique for fabrication of highly reduced graphene papers with high conductivities. Such highly conductive graphene papers have great potential to be used in application for construction of microelectronic and sensor devices.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Šimek, Petr
Sofer, Zdeněk
Jankovský, Ondřej
Sedmidubský, David
Pumera, Martin
format Article
author Šimek, Petr
Sofer, Zdeněk
Jankovský, Ondřej
Sedmidubský, David
Pumera, Martin
author_sort Šimek, Petr
title Oxygen-free highly conductive graphene papers
title_short Oxygen-free highly conductive graphene papers
title_full Oxygen-free highly conductive graphene papers
title_fullStr Oxygen-free highly conductive graphene papers
title_full_unstemmed Oxygen-free highly conductive graphene papers
title_sort oxygen-free highly conductive graphene papers
publishDate 2014
url https://hdl.handle.net/10356/99462
http://hdl.handle.net/10220/19630
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