Size-Selective Nanoparticle Growth on Few-Layer Graphene Films
Nano Letters2010Vol. 10(3), pp. 777–781
Citations Over TimeTop 10% of 2010 papers
Zhengtang Luo, Luke A. Somers, Yaping Dan, Thomas Ly, Nicholas Kybert, E. J. Melé, A. T. Charlie Johnson
Abstract
We observe that gold atoms deposited by physical vapor deposition onto few-layer graphenes condense upon annealing to form nanoparticles with an average diameter that is determined by the graphene film thickness. The data are well described by a theoretical model in which the electrostatic interactions arising from charge transfer between the graphene and the gold particle limit the size of the growing nanoparticles. The model predicts a nanoparticle size distribution characterized by a mean diameter D that follows a D proportional, variant m(1/3) scaling law where m is the number of carbon layers in the few-layer graphene film.
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