Oxidation-assisted graphene heteroepitaxy on copper foil

Nicolas Reckinger, Xiaohui Tang, Frédéric Joucken, Luc Lajaunie, Raul Arenal, Emmanuel Dubois, Benoît Hackens, Luc Henrard, Jean-François Colomer

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

We propose an innovative, easy-to-implement approach to synthesize aligned large-area single-crystalline graphene flakes by chemical vapor deposition on copper foil. This method doubly takes advantage of residual oxygen present in the gas phase. First, by slightly oxidizing the copper surface, we induce grain boundary pinning in copper and, in consequence, the freezing of the thermal recrystallization process. Subsequent reduction of copper under hydrogen suddenly unlocks the delayed reconstruction, favoring the growth of centimeter-sized copper (111) grains through the mechanism of abnormal grain growth. Second, the oxidation of the copper surface also drastically reduces the nucleation density of graphene. This oxidation/reduction sequence leads to the synthesis of aligned millimeter-sized monolayer graphene domains in epitaxial registry with copper (111). The as-grown graphene flakes are demonstrated to be both single-crystalline and of high quality.

langueAnglais
Pages18751-18759
Nombre de pages9
journalNanoscale
Volume8
Numéro44
Les DOIs
étatPublié - 28 nov. 2016

Empreinte digitale

Graphite
Epitaxial growth
Graphene
Metal foil
Copper
Oxidation
Crystalline materials
Grain growth
Freezing
Hydrogen
Chemical vapor deposition
Monolayers
Grain boundaries
Nucleation
Crystallization
Gases
Oxygen

Citer ceci

Reckinger, Nicolas ; Tang, Xiaohui ; Joucken, Frédéric ; Lajaunie, Luc ; Arenal, Raul ; Dubois, Emmanuel ; Hackens, Benoît ; Henrard, Luc ; Colomer, Jean-François. / Oxidation-assisted graphene heteroepitaxy on copper foil. Dans: Nanoscale. 2016 ; Vol 8, Numéro 44. p. 18751-18759
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Reckinger, N, Tang, X, Joucken, F, Lajaunie, L, Arenal, R, Dubois, E, Hackens, B, Henrard, L & Colomer, J-F 2016, 'Oxidation-assisted graphene heteroepitaxy on copper foil' Nanoscale, VOL. 8, Numéro 44, p. 18751-18759. DOI: 10.1039/c6nr02936a

Oxidation-assisted graphene heteroepitaxy on copper foil. / Reckinger, Nicolas; Tang, Xiaohui; Joucken, Frédéric; Lajaunie, Luc; Arenal, Raul; Dubois, Emmanuel; Hackens, Benoît; Henrard, Luc; Colomer, Jean-François.

Dans: Nanoscale, Vol 8, Numéro 44, 28.11.2016, p. 18751-18759.

Résultats de recherche: Contribution à un journal/une revueArticle

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Reckinger N, Tang X, Joucken F, Lajaunie L, Arenal R, Dubois E et al. Oxidation-assisted graphene heteroepitaxy on copper foil. Nanoscale. 2016 nov. 28;8(44):18751-18759. Disponible �, DOI: 10.1039/c6nr02936a