We have carried out a numerical study of the structural, thermodynamic, and anchoring properties of organic liquid crystal (LC) films (OLCFs) deposited in vacuo on a solid surface. Calculations have been carried out in the framework of the extended McMillan approach for anisotropic forces. The effects of surface enhanced pair interactions in the bounding LC/solid and LC/vacuum layers and of film thickness on the orientational and translational order parameters, as well as on Helmholtz free energy, entropy, and anchoring energy of OLCFs have been investigated. A reasonable agreement between the theoretically predicted and the experimentally obtained data on the anchoring energy of 4-n-octyl-40-cyanobiphenyl films has been obtained.

Effective anchoring energy of an organic liquid crystal film on a solid surface

ROMANO, SILVANO;
2011-01-01

Abstract

We have carried out a numerical study of the structural, thermodynamic, and anchoring properties of organic liquid crystal (LC) films (OLCFs) deposited in vacuo on a solid surface. Calculations have been carried out in the framework of the extended McMillan approach for anisotropic forces. The effects of surface enhanced pair interactions in the bounding LC/solid and LC/vacuum layers and of film thickness on the orientational and translational order parameters, as well as on Helmholtz free energy, entropy, and anchoring energy of OLCFs have been investigated. A reasonable agreement between the theoretically predicted and the experimentally obtained data on the anchoring energy of 4-n-octyl-40-cyanobiphenyl films has been obtained.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/227406
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