Spontaneous patterning of quantum dots at the air-water interface |
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Authors: | Sear R P Chung S W Markovich G Gelbart W M Heath J R |
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Affiliation: | Department of Chemistry and Biochemistry, University of California at Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095-1569, USA. |
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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. |
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