Title
Structural ordering of self-assembled clusters with competing interactions : transition from faceted to spherical clusters Structural ordering of self-assembled clusters with competing interactions : transition from faceted to spherical clusters
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Washington, D.C. ,
Subject
Physics
Chemistry
Source (journal)
Langmuir: the ACS journal of surfaces and colloids. - Washington, D.C.
Volume/pages
31(2015) :3 , p. 917-924
ISSN
0743-7463
ISI
000348689700005
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The self-assembly of nanoparticles into clusters and the effect of the different parameters of the competing interaction potential on it are investigated. For a small number of particles, the structural organization of the clusters is almost unaffected by the attractive part of the potential, and for an intermediate number of particles the configuration strongly depends on the strength of it. The cluster size is controlled by the range of the interaction potential, and the structural arrangement is guided by the strength of the potential: i.e., the self-assembled cluster transforms from a faceted configuration at low strength to a spherical shell-like structure at high strength. Nonmonotonic behavior of the cluster size is found by increasing the interaction range. An approximate analytical expression is obtained that predicts the smallest cluster for a specific set of potential parameters. A Mendeleev-like table is constructed for different values of the strength and range of the attractive part of the potential in order to understand the structural ordering of the ground-state configuration of the self-assembled clusters.
E-info
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https://repository.uantwerpen.be/docman/iruaauth/4ce4e1/125292.pdf
Handle