Controlling Pattern Formation in Nanoparticle Assemblies via Directed Solvent Dewetting

Martin, CP and Blunt, MO and Pauliac-Vaujour, E and Stannard, A and Moriarty, P and Vancea, I and Thiele, U (2007) Controlling Pattern Formation in Nanoparticle Assemblies via Directed Solvent Dewetting. Physical Review Letters, 99 . p. 116103.

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Abstract

We have achieved highly localised control of pattern formation in two dimensional nanoparticle assemblies by direct modification of solvent dewetting dynamics. A striking dependence of nanoparticle organisation on the size of atomic force microscope-generated surface heterogeneities is observed and reproduced in numerical simulations. Nanoscale features induce rupture of the solvent-nanoparticle film, causing the local flow of solvent to carry nanoparticles into confinement. Microscale heterogeneities instead slow the evaporation of the solvent, producing a remarkably abrupt interface

between different nanoparticle patterns.

Item Type: Article
Additional Information: Copyright of American Physical Society
Uncontrolled Keywords: nanoparticles; self-assembly; self-organisation; dewetting; nanostructures; pattern formation
Schools/Departments: University of Nottingham UK Campus > Faculty of Science > School of Physics and Astronomy
Related URLs:
URLURL Type
http://www.nottingham.ac.uk/physics/research/nanoAuthor
Depositing User: Moriarty, P.J.
Date Deposited: 05 Jun 2008 08:40
Last Modified: 05 Jun 2008 08:43
URI: http://eprints.nottingham.ac.uk/id/eprint/904

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