Skip to Main content Skip to Navigation
Journal articles

The Role of the Gas Phase in Graphene Formation by CVD on Copper

Abstract : 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.
Complete list of metadata

Cited literature [35 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01889823
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Monday, October 8, 2018 - 9:19:31 AM
Last modification on : Friday, February 5, 2021 - 12:30:03 PM
Long-term archiving on: : Wednesday, January 9, 2019 - 12:43:27 PM

File

Trinsoutrot_20303.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Pierre Trinsoutrot, Caroline Rabot, Hugues Vergnes, Alexandru Delamoreanu, Aziz Zenasni, et al.. The Role of the Gas Phase in Graphene Formation by CVD on Copper. Chemical Vapor Deposition, Wiley-VCH Verlag, 2014, 20 (1-2-3), pp.51-58. ⟨10.1002/cvde.201307075⟩. ⟨hal-01889823⟩

Share

Metrics

Record views

227

Files downloads

224