Jump to main content
Jump to site search

Issue 1, 2016
Previous Article Next Article

Interactions between C and Cu atoms in single-layer graphene: direct observation and modelling

Author affiliations

Abstract

Metal doping into the graphene lattice has been studied recently to develop novel nanoelectronic devices and to gain an understanding of the catalytic activities of metals in nanocarbon structures. Here we report the direct observation of interactions between Cu atoms and single-layer graphene by transmission electron microscopy. We document stable configurations of Cu atoms in the graphene sheet and unique transformations of graphene promoted by Cu atoms. First-principles calculations based on density functional theory reveal a reduction of energy barrier that caused rotation of C–C bonds near Cu atoms. We discuss two driving forces, electron irradiation and in situ heating, and conclude that the observed transformations were mainly promoted by electron irradiation. Our results suggest that individual Cu atoms can promote reconstruction of single-layer graphene.

Graphical abstract: Interactions between C and Cu atoms in single-layer graphene: direct observation and modelling

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Aug 2015, accepted on 20 Nov 2015 and first published on 23 Nov 2015


Article type: Paper
DOI: 10.1039/C5NR05913E
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2016,8, 529-535
  •   Request permissions

    Interactions between C and Cu atoms in single-layer graphene: direct observation and modelling

    E. Kano, A. Hashimoto, T. Kaneko, N. Tajima, T. Ohno and M. Takeguchi, Nanoscale, 2016, 8, 529
    DOI: 10.1039/C5NR05913E

Search articles by author

Spotlight

Advertisements