Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5351320 | Applied Surface Science | 2014 | 6 Pages |
Abstract
We present an exactly solvable generalization of the rate equation model for irreversible growth with size-independent capture numbers which includes desorption of monomers. It is shown that the universal size distribution shapes depend on the sole parameter, the ratio between the characteristic diffusion and adsorption areas. We perform a statistical analysis of the scanning tunneling microscopy images of C60 clusters deposited onto In-modified Si(1Â 1Â 1)â3Â ÃÂ â3-Au surfaces at different temperatures and deduce the experimental size distributions. These distributions have an essentially asymmetric shape with a much faster decay toward larger sizes. Fitting the data with theoretical distribution shapes yield the estimates for some important kinetic parameters, in particular, the temperature-dependent diffusion lengths and effective lifetimes of C60 monomers.
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Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
N.V. Sibirev, V.G. Dubrovskii, A.V. Matetskiy, L.V. Bondarenko, D.V. Gruznev, A.V. Zotov, A.A. Saranin,