Size-dependent mobility of gold nano-clusters during growth on chemically modified graphene
Source abstract
Abstract
Gold nano-clusters were grown on chemically modified graphene by direct sputter deposition. Transmission electron microscopy of the nano-clusters on these electron-transparent substrates reveals an unusual bimodal island size distribution (ISD). A kinetic Monte Carlo model of growth incorporating a size-dependent cluster mobility rule uniquely reproduces the bimodal ISD, providing strong evidence for the mobility of large clusters during surface growth. The cluster mobility exponent of −5/3 is consistent with cluster motion via one-dimensional diffusion of gold atoms around the edges of the nano-clusters.
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Research context
OpenAlex topics: Graphene research and applications · Gold and Silver Nanoparticles Synthesis and Applications · nanoparticles nucleation surface interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
University of Warwick 1 Department of Physics, , Coventry CV4 7AL, United Kingdom
University of Strathclyde 2 Department of Chemical and Process Engineering, , James Weir Building, 75 Montrose St., Glasgow G1 1XJ, United Kingdom
References (28)
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