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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2018, 18 (4), 40—47. DOI: 10.18083/LCAppl.2018.4.40
Electrical Double Layers and their Effect on the Low-Frequency Dielectric Permittivity of 4-n-Pentyl-4'-Cyanobiphenyl (5СВ)
D. O. Rybakov1,2, V. V. Belyaev1,3
Author affiliations 1Moscow Region State University, 10-а Radio St., Moscow, 105005, Russia 2Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics"
of Russian Academy of Sciences, 59 Leninsky Ave., Moscow, 119333, Russia 2RUDN University (Peoples' Friendship University of Russia),
6 Miklukho-Maklaya St., Moscow, 117198, Russia E-mail: firstname.lastname@example.org
Abstract On the basis of the dielectric spectroscopy experimental results of 4-n-pentyl-4'-cyanobiphenyl (5CB), an empirical model describing the formation of double electrical layers (DEL) for the cells with the homeotropic and planar orientation is constructed. The model allows to determine the parameters of DEL, such as thickness and capacity, taking into account physical parameters of liquid crystal. It is also shows the empirical dependence of the parasitic capacitance, which is due to the presence of conduction ions, on the thickness of these layers.
Keywords: nematic liquid crystal, electrical double layer, capacity and thickness of electrical double layer