Effect of fullerenes C<sub>60</sub> on dielectric relaxation, electric conductivity, and electro-optic properties of 4-cyano-4′-pentylbiphenyl

Ibragimov T. D.

FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES, vol.29, no.6, pp.457-463, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.1080/1536383x.2020.1859489
  • Journal Name: FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Chemical Abstracts Core, Chimica, Compendex, INSPEC
  • Page Numbers: pp.457-463
  • Azerbaijan State University of Economics (UNEC) Affiliated: No

Abstract

Effect of fullerenes C-60 on dielectric relaxation, electric conductivity, and electro-optic properties of nematic liquid crystal 4-cyano-4 '-pentylbiphenyl is investigated. It is shown that the inclusion of fullerenes into liquid crystal leads to decreasing of the clearing temperature and the order parameter. In this case, the transverse component of the real part of dielectric permittivity increases while the longitudinal component decreases. A maximum of dielectric absorption shifts to the low-frequency region. The capture of moving ions by fullerenes leads to a decrease of electric conductivity. The elastic constant, rotational viscosity and switching times decrease while the threshold voltage of Freedericksz effect increases.