Abstract
The behavior of frequency dependences of the impedance of a capacitive measuring cell with a liquid crystal has been investigated in the frequency range from 10−1 to 105 Hz. A method for determining electrophysical characteristics of the liquid crystal in the bulk and at the liquid crystal-metal electrode interface has been proposed and tested for liquid crystals of the alkyl cyanobiphenyl series, which are doped with ionic surfactants. The method is based on the use of an equivalent electrical circuit, which makes it possible to approximate the impedance spectra with the required accuracy, and also on the determination of the frequency at the singular point in the impedance spectra, at which the reactive component of the electric current flowing through the liquid-crystal cell is negligible compared to the active component.
Similar content being viewed by others
References
B. A. Belyaev, A. A. Leksikov, A. M. Serzhantov, and V. F. Shabanov, Tech. Phys. Lett. 34(6), 463 (2008).
V. Ya. Zyryanov, M. N. Krakhalev, O. O. Prishchepa, and A. V. Shabanov, JETP Lett. 86(6), 383 (2007).
A. L. Alexe-Ionescu, G. Barbero, and I. Lelidis, J. Phys. Chem. B 113, 14747 (2009).
B. A. Belyaev and N. A. Drokin, Phys. Solid State 56(7), 1455 (2014).
S. Murakami, H. Iga, and H. Naito, J. Appl. Phys. 80(11), 6396 (1996).
G. Barbero and A. K. Zvezdin, Phys. Rev. E: Stat. Phys., Plasmas, Fluids, Relat. Interdiscip. Top. 59(2), 1846 (1999).
A.L. Alexe-Ionescu, G. Barbero, and I. Lelidis, Phys. Rev. E: Stat., Nonlinear, Soft Matter Phys. 80, 061203–1 (2009).
M. Mizusaki, T. Miyashita, T. Uchida, Y. Yamada, Y. Ishii, and S. Mizushima, J. Appl. Phys. 102, 014904–1 (2007).
M. Scalerandi, P. Pagliusi, G. Gipparrone, and G. Barbero, Phys. Rev. E: Stat., Nonlinear, Soft Matter Phys. 69, 051708–1 (2004).
I. D. Raistrick, Annu. Rev. Mater. Sci. 16, 343 (1986).
N. G. Bukun and A. E. Ukshe, Russ. J. Electrochem. 45(1), 11 (2009).
A. Serghei, M. Tress, J. R. Sangoro, and F. Kremer, Phys. Rev. B: Condens. Matter 80, 184301–1 (2009).
Y.-K. Cho and S. Granick, J. Chem. Phys. 119(1), 547 (2003).
R. J. Klein, S. Zhang, S. Dou, B. H. Jones, R. H. Colby, and J. Runta, Chem. Phys. 124, 144903–1 (2006).
T. V. Bezrodnaya, V. V. Nesprava, G. A. Puchkovskaya, I. T. Chashechnikova, Yu. P. Boiko, and Ya. Baran, J. Appl. Spectrosc. 78(1), 50 (2011).
M. G. Tomilin, Interaction of Liquid Crystals with the Surface (Politekhnika, St. Petersburg, 2001) [in Russian].
Yi. Huang, P. J. Bos, and A. Bhowmik, J. Appl. Phys. 108, 064502–1 (2010).
P. Jasinski, V. Petrovsky, T. Suzuki, and H. U. Anderson, J. Electrochem. Soc. 152(4), J27 (2005).
N. A. Poklonski, N. I. Gorbachuk, S. V. Shpakovski, and A. Wieck, Tech. Phys. 55(10), 1463 (2010).
C. Druon and J. M. Wacrenier, J. Phys. 38, 47 (1977).
A. I. Zhakin, Phys.-Usp. 46(1), 45 (2003).
P. Patricio, C. R. Leal, L. F. V. Pinto, A. Boto, and M. T. Cidade, Liq. Cryst. 39, 25 (2012).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © B.A. Belyaev, N.A. Drokin, 2015, published in Fizika Tverdogo Tela, 2015, Vol. 57, No. 1, pp. 170–175.
Rights and permissions
About this article
Cite this article
Belyaev, B.A., Drokin, N.A. Impedance spectroscopy investigation of electrophysical characteristics of the electrode-liquid crystal interface. Phys. Solid State 57, 181–187 (2015). https://doi.org/10.1134/S1063783415010060
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063783415010060