Issue 20, 2014

Interactions of Pb and Te atoms with graphene


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

Article information

Article type
15 Janv. 2014
10 Febr. 2014
First published
20 Febr. 2014
This article is Open Access
Creative Commons BY license

Dalton Trans., 2014,43, 7442-7448

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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