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Issue 20, 2014
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Interactions of Pb and Te atoms with graphene

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Abstract

PbTe nanocrystals were deposited onto the surface of graphene and used as a reservoir of Pb and Te atoms. Electron beam irradiation at 80 kV caused Pb and Te atoms to mobilize and disperse across the surface of graphene. We studied the dynamics of these atoms in real time using aberration-corrected transmission electron microscopy. The Pb and Te atoms were found to attach to the surface layer of amorphous carbon that resides upon the graphene, as well as its edge. Pb and Te atoms were not found residing on pristine graphene, but were found to bond to the free edge states along graphene hole edges. Small PbTe nanoclusters tended to only form on the surface of the amorphous carbon regions and not on pristine graphene.

Graphical abstract: Interactions of Pb and Te atoms with graphene

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Publication details

The article was received on 15 Jan 2014, accepted on 10 Feb 2014 and first published on 20 Feb 2014


Article type: Paper
DOI: 10.1039/C4DT00143E
Citation: Dalton Trans., 2014,43, 7442-7448
  • Open access: Creative Commons BY license
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    Interactions of Pb and Te atoms with graphene

    C. Gong, A. W. Robertson, K. He, C. Ford, A. A. R. Watt and J. H. Warner, Dalton Trans., 2014, 43, 7442
    DOI: 10.1039/C4DT00143E

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