Spontaneous patterning of quantum dots at the air-water interface

Richard P. Sear; Sung-Wook Chung; Gil Markovich; William M. Gelbart; James R. Heath

doi:10.1103/PhysRevE.59.R6255

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Spontaneous patterning of quantum dots at the air-water interface

Richard P. Sear, Sung-Wook Chung, Gil Markovich, William M. Gelbart, and James R. Heath

Phys. Rev. E 59, R6255(R) – Published 1 June 1999

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.

Received 25 June 1998

DOI:https://doi.org/10.1103/PhysRevE.59.R6255

Authors & Affiliations

Richard P. Sear, Sung-Wook Chung, Gil Markovich, William M. Gelbart^*, and James R. Heath^†

Department of Chemistry and Biochemistry, University of California at Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095-1569

^*Electronic address: gelbart@chem.ucla.edu
^†Electronic address: heath@chem.ucla.edu

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Vol. 59, Iss. 6 — June 1999

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Physical Review E

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