Graphene Formation by Decomposition of C60

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• 作者：Lui虂s M.A. Perdiga虄o ; Syarifah N. Sabki ; Jason M. Garfitt ; Pierre Capiod ; Peter H. Beton
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：April 21, 2011
• 年：2011
• 卷：115
• 期：15
• 页码：7472-7476
• 全文大小：810K
• 年卷期：v.115,no.15(April 21, 2011)
• ISSN：1932-7455

文摘

Graphene is formed through the thermally induced decomposition of C₆₀ in combination with a Ni thin film. After transfer to a SiO₂ substrate, optical microscopy and Raman spectroscopy confirm the presence of graphene for films of C₆₀ buried under nickel or alternatively for C₆₀ adsorbed on a nickel surface. For buried films the graphene thickness is shown to depend on the fullerene dosage, with evidence of domain growth from nucleation sites separated by tens of micrometers. The adsorption of C₆₀ and the changes arising from annealing are also monitored using scanning tunneling microscopy. We relate our results to previous studies of the decomposition of C₆₀ on nickel and other transition metals.