Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase

Tomar, V.; Roberts, T. F.; Abbott, N. L.; Hernández-Ortiz, J. P.; de Pablo, J. J.

doi:10.1021/la204119p

Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase

Journal Article · Mon Mar 12 00:00:00 EDT 2012 · Langmuir

DOI:https://doi.org/10.1021/la204119p· OSTI ID:1630265

Tomar, V. ^[1]; Roberts, T. F. ^[2]; Abbott, N. L. ^[2]; Hernández-Ortiz, J. P. ^[3]; de Pablo, J. J. ^[2]

Univ. of Wisconsin, Madison, WI (United States); Cornell University
Univ. of Wisconsin, Madison, WI (United States)
Univ. Nacional de Colombia, Medellín (Colombia)

A continuum theory is used to study the interactions between nanoparticles suspended in nematic liquid crystals. The free energy functional that describes the system is minimized using an Euler–Lagrange approach and an unsymmetric radial basis function method. It is shown that nanoparticle liquid-crystal mediated interactions can be controlled over a large range of magnitudes through changes of the anchoring energy and the particle diameter. Finally, the results presented in this work serve to reconcile past discrepancies between theoretical predictions and experimental observations, and suggest intriguing possibilities for directed nanoparticle self-assembly in liquid crystalline media.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Wisconsin, Madison, WI (United States); Univ. of Chicago, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)

Grant/Contract Number:: SC0004025

OSTI ID:: 1630265

Journal Information:: Langmuir, Journal Name: Langmuir Journal Issue: 14 Vol. 28; ISSN 0743-7463

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
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