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Effect of substrate geometry on liquid-crystal-mediated nanocylinder-substrate interactions
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Cheung, David L. and Allen, M. P. (2008) Effect of substrate geometry on liquid-crystal-mediated nanocylinder-substrate interactions. Journal of Chemical Physics, Vol.129 (No.11). p. 114706. doi:10.1063/1.2977968 ISSN 0021-9606.
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Official URL: http://dx.doi.org/10.1063/1.2977968
Abstract
Using classical density functional theory, the liquid crystal (LC)-mediated interaction between a cylindrical nanoparticle and a structured substrate is studied. The surface is structured by cutting a rectangular groove into the surface. In the absence of the nanoparticle, a range of defect structures is formed in the vicinity of the groove. By varying the groove width and depth, the LC-mediated interaction changes from repulsive to attractive. This interaction is strongest when the groove is of comparable size to the nanoparticle. For narrow grooves the nanoparticle is attracted to the center of the groove, while for wider grooves there is a free energy minimum near the sidewalls. (c) 2008 American Institute of Physics. [DOI: 10.1063/1.2977968]
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Density functionals, Liquid crystals, Nanoparticles | ||||
| Journal or Publication Title: | Journal of Chemical Physics | ||||
| Publisher: | American Institute of Physics | ||||
| ISSN: | 0021-9606 | ||||
| Official Date: | 21 September 2008 | ||||
| Dates: |
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| Volume: | Vol.129 | ||||
| Number: | No.11 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | p. 114706 | ||||
| DOI: | 10.1063/1.2977968 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
| Grant number: | GR/S77240 (EPSRC), EP/E03375X (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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