Title

Light scattering and photon correlation spectroscopy of filled and confined liquid crystals

Keywords

Confinement; Dynamical behavior; Liquid crystals

Abstract

We present the results of photon correlation spectroscopy investigations of the influence of the confinement and interfaces on the behavior of nematic liquid crystals (NLC) filled with aerosil particles as well as dispersed in porous matrices of different pore geometry and size. The experiments show significant changes in physical properties of LC in such confinements and suggest that there is some evidence for glass-like dynamical behavior, although bulk LC do not have glassy properties. In NLC with nanoparticle network, at least two well identified decays were observed. We attribute the first decay to the director fluctuations of the bulk NLC. The second, glass-like decay, could be related to director dynamics in surface layers at aerosil - LC interface. The mode corresponding to motions of individual aerosil nanoparticles was not detected. This confirms that the aerosil particles form a network in the LC. © 1998 OPA (Overseas Publishers Association) N.V. Published by license under the Gordon and Breach Science Publishers imprint.

Publication Date

1-1-1998

Publication Title

Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

Volume

320

Number of Pages

173-191

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/10587259808024394

Socpus ID

0000075040 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0000075040

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