Present address: UJF-Grenoble 1/CNRS/CEA LTM 17 rue des Martyrs, 38054 GRENOBLE Cedex 9 (France)
The Role of the Gas Phase in Graphene Formation by CVD on Copper†
Article first published online: 31 OCT 2013
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Chemical Vapor Deposition
Volume 20, Issue 1-2-3, pages 51–58, March 2014
How to Cite
Trinsoutrot, P., Rabot, C., Vergnes, H., Delamoreanu, A., Zenasni, A. and Caussat, B. (2014), The Role of the Gas Phase in Graphene Formation by CVD on Copper. Chem. Vap. Deposition, 20: 51–58. doi: 10.1002/cvde.201307075
The work was supported by the FP7-NMP GRENADA European project. The authors acknowledge M. Molinier and E. Prevot from LGC/INP de Toulouse, for technical support.
- Issue published online: 6 MAR 2014
- Article first published online: 31 OCT 2013
- Manuscript Revised: 28 AUG 2013
- Manuscript Received: 16 MAY 2013
- Catalytic CVD;
Graphene synthesis on copper foils is experimentally studied at 1000°C under various methane partial pressures. A decrease in the carbon supply permits the formation of larger graphene flakes with fewer layers and crystalline defects. An influence of the copper foil confinement on graphene nucleation and growth is shown. Then, methane pyrolysis is simulated using the Fluent Ansys® code. The model shows that, at 1000°C, CH4 is decomposed to form gaseous saturated and unsaturated species. This means that two types of unsaturated species can co-exist during graphene synthesis, the first one arising in the reactor volume from methane pyrolysis, and the second one only forming in the vicinity of copper, thanks to its catalytic activity.