Restoring self-limited growth of single-layer graphene on copper foil via backside coating

Nicolas Reckinger, Marcello Casa, Jeroen E. Scheerder, Wout Keijers, Matthieu Paillet, Jean-Roch Huntzinger, Emile Haye, Alexandre Felten, Joris Van de Vondel, Maria Sarno, Luc Henrard, Jean-Francois Colomer

Résultats de recherche: Contribution à un journal/une revueArticle

11 Téléchargements (Pure)

Résumé

The growth of single-layer graphene (SLG) by chemical vapor deposition (CVD) on copper surfaces is very popular because of the self-limiting effect that prevents the growth of few-layer graphene (FLG). However, the reproducibility of the CVD growth of homogeneous SLG remains a major challenge, especially if one wants to avoid heavy surface treatments, monocrystalline substrates and expensive equipment to control the atmosphere inside the growth system. We demonstrate here that backside tungsten coating of copper foil allows the exclusive growth of SLG with full coverage by atmospheric pressure CVD implemented in a vacuum-free outfit. We show that the absence of FLG patches is related to the absence of decomposition of methane on the backside and consequently to the suppression of C diffusion through copper. In the perspective of large-scale production of graphene, this approach constitutes a significant improvement to the traditional CVD growth process since (1) a tight control of the hydrocarbon flow is no longer required to avoid FLG formation and, consequently, (2) the growth duration necessary to reach full coverage can be dramatically shortened.
langue originaleIndéfini/inconnu
Nombre de pages40
journalArXiv pre-print
Etat de la publicationPublié - 15 août 2018

mots-clés

  • Graphene
  • chemical vapor deposition,
  • copper
  • uniformity
  • Reproducibility
  • raman spectroscopy

Contient cette citation

Reckinger, N., Casa, M., Scheerder, J. E., Keijers, W., Paillet, M., Huntzinger, J-R., Haye, E., Felten, A., Vondel, J. V. D., Sarno, M., Henrard, L., & Colomer, J-F. (2018). Restoring self-limited growth of single-layer graphene on copper foil via backside coating. ArXiv pre-print.