期刊
NANO LETTERS
卷 10, 期 3, 页码 777-781出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl9026605
关键词
Graphene; nanoparticle growth mechanisms; work function effects
类别
资金
- JSTO/DTRA/ARO [W911NF-06-1-04621]
- NSF [DMR08-05136]
- Department of Energy [DE-FG02-FR45 118]
- NSF REU Site [DMR06-48953]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [GRANTS:13872779, 0805136] Funding Source: National Science Foundation
We observe chat 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 6 that follows a (D) over bar alpha m(1/3) mill scaling law where in is the number of carbon layers in the few-layer graphene film.
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