Semiconductor Physics, Quantum Electronics & Optoelectronics. 2015. V. 18, N 2. P. 205-208.
https://doi.org/10.15407/spqeo18.02.205

Influence of superionic nanoparticles Cu6PS5I on dielectric properties of nematic liquid crystal 6СНВТ
I.P. Studenyak1, P.Yu. Demko1, A.V. Bendak1, O.V. Kovalchuk2,3, T.M. Kovalchuk4, V. Lisý5, P. Kopčanský6, M. Timko6, N. Tomašovičová6, V. Zavisova6,V. Gdovinova6, J. Miskuf6, I.V. Oleinikova2, A.I. Lad2, N.M. Kucheriavchenkova2

1Uzhhorod National University, Faculty of Physics, 3, Narodna Sq., 88000 Uzhhorod, Ukraine; e-mail: studenyak@dr.com
2Kyiv National University of Technologies and Design, Kyiv, Ukraine
3Institute of Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
4V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
5Technical University of Košice, Faculty of Electrical Engineering and Informatics, 9, Letná, 04200 Košice, Slovakia
6Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia

Abstract. Within the frequency range 10…106 Hz, the influence of Cu6PS5І nano-particles on the dielectric properties of planar oriented liquid crystal 6СНВТ has been studied. It has been shown that nanoparticles lead to an increase in conductivity, but the conductivity dependence on concentration is non-monotonic function. It has been suggested that the reason of non-monotonic dependence of conductivity of 6СНВТ on the concentration of nanoparticles is significant influence of ion adsorption on the nanoparticle surface and increase in the viscosity of liquid crystal when introducing nanoparticles.

Keywords: nematic liquid crystal, superionic nanoparticle, dielectric properties.

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