Iron-mediated growth of epitaxial graphene on SiC and diamond

Research output: Contribution to journalArticle

Abstract

Ordered graphene films have been fabricated on Fe-treated SiC and diamond surfaces using the catalytic conversion of sp(3) to sp(2) carbon. In comparison with the bare SiC(0 0 0 1) surface, the graphitization temperature is reduced from over 1000 degrees C to 600 degrees C and for diamond (111), this new approach enables epitaxial graphene to be grown on this surface for the first time. For both substrates, a key development is the in situ monitoring of the entire fabrication process using real-time electron spectroscopy that provides the necessary precision for the production of films of controlled thickness. The quality of the graphene/graphite layers has been verified using angle-resolved photoelectron spectroscopy, scanning tunneling microscopy and low energy electron diffraction. Graphene is only formed on treated regions of the surface and so this offers a method for fabricating and patterning graphene structures on SiC and diamond in the solid-state at industrially realistic temperatures. (c) 2012 Elsevier Ltd. All rights reserved.

Details

Authors
  • S. P. Cooil
  • F. Song
  • G. T. Williams
  • O. R. Roberts
  • D. P. Langstaff
  • B. Jorgensen
  • K. Hoydalsvik
  • D. W. Breiby
  • E. Wahlstrom
  • D. A. Evans
  • Justin Wells
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Natural Sciences
  • Physical Sciences
Original languageEnglish
Pages (from-to)5099-5105
JournalCarbon
Volume50
Issue number14
Publication statusPublished - 2012
Publication categoryResearch
Peer-reviewedYes