Applied Physics A

, 105:31

Large single-crystal monolayer graphene by decomposition of methanol

  • Gouri Radhakrishnan
  • Paul M. Adams
  • Andrew D. Stapleton
  • Heinrich G. Muller
  • Brendan J. Foran
Rapid communication

DOI: 10.1007/s00339-011-6514-x

Cite this article as:
Radhakrishnan, G., Adams, P.M., Stapleton, A.D. et al. Appl. Phys. A (2011) 105: 31. doi:10.1007/s00339-011-6514-x

Abstract

We present a novel method for the synthesis of monolayer graphene with large single-crystal domains extending over 10–30 μm2, produced by the decomposition of methanol on Cu in a single process step, in a flow of pure Ar gas, without H2. Eliminating H2 as a process gas offers increased safety and greatly facilitates fabrication scaling. The graphene grain size and orientation were characterized by selected area electron diffraction in transmission electron microscopy. Based on analyses of effluents from the furnace during the synthesis, a possible mechanism for graphene formation from methanol, involving carbon monoxide as an intermediate, is proposed.

Supplementary material

339_2011_6514_MOESM1_ESM.pdf (1.2 mb)
(PDF 1262 KB)

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Gouri Radhakrishnan
    • 1
  • Paul M. Adams
    • 1
  • Andrew D. Stapleton
    • 1
  • Heinrich G. Muller
    • 1
  • Brendan J. Foran
    • 1
  1. 1.Physical Sciences LaboratoriesThe Aerospace CorporationLos AngelesUSA