Published June 1999 | Version Published
Journal Article Open

Spontaneous patterning of quantum dots at the air-water interface

Abstract

Nanoparticles deposited at the air-water interface are observed to form circular domains at low density and stripes at higher density. We interpret these patterns as equilibrium phenomena produced by a competition between an attraction and a longer-ranged repulsion. Computer simulations of a generic pair potential with attractive and repulsive parts of this kind, reproduce both the circular and stripe patterns. Such patterns have a potential use in nanoelectronic applications.

Additional Information

© 1999 The American Physical Society Received 25 June 1998; revised 8 March 1999 We would like to acknowledge Sven E. Henrichs for preparing some of the Ag nanoparticles. This work was supported by the U.S. Office of Naval Research (ONR) under Order No. N00014-98-1-0422, and the American Chemical Society Petroleum Research Fund (PRF) under Grant No. 31797-AC9. J.R.H. acknowledges support from the Packard Foundation and the Sloan Foundation.

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Identifiers

Eprint ID
6326
Resolver ID
CaltechAUTHORS:SEApre99

Funding

Office of Naval Research (ONR)
N00014-98-1-0422
American Chemical Society Petroleum Research Fund
31797-AC9
David and Lucile Packard Foundation
Alfred P. Sloan Foundation

Dates

Created
2006-12-01
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Updated
2021-11-08
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