Real-Time TEM and Kinetic Monte Carlo Studies of the Coalescence of Decahedral Gold Nanoparticles

We report on a real-time in situ TEM study of the coalescence of individual pairs of decahedral gold nanoparticles, which have been synthesized in solution. We observe the rate of growth of the neck that joins two particles during coalescence and compare this to classical continuum theory and to ato...

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Bibliographic Details
Published in:	ACS nano Vol. 3; no. 11; pp. 3809 - 3813
Main Authors:	Lim, Teck H, McCarthy, David, Hendy, Shaun C, Stevens, Kevin J, Brown, Simon A, Tilley, Richard D
Format:	Journal Article
Language:	English
Published:	United States American Chemical Society 24-11-2009
Subjects:	coalescence nanoparticles transmission electron microscopy kinetic Monte Carlo
Online Access:	Get full text
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Summary:	We report on a real-time in situ TEM study of the coalescence of individual pairs of decahedral gold nanoparticles, which have been synthesized in solution. We observe the rate of growth of the neck that joins two particles during coalescence and compare this to classical continuum theory and to atomistic kinetic Monte Carlo simulations. We find good agreement between the observations and the simulations but not with the classical continuum model. This disagreement is attributed to the faceted nature of the particles.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1936-0851 1936-086X
DOI:	10.1021/nn9012252