\textbf{Flexo-Electro-Optical Properties of Fullerene-C(Buckyballs) Suspended in 4'-Pentyl-4-Biphenyl (5CB)}

POSTER

Abstract

We have investigated electro optical properties of a widely studied liquid crystal (5CB) when fullerene C-60 (buckyballs) is suspended in various concentrations as a function of temperature. Under a polarizing microscope, we have observed disclination (defect) points at the sites of buckyballs suggesting a strong interaction between the two components. The data indicate a shift in the transition temperature and sudden decrease in dielectric anisotropy ($\Delta \varepsilon )$ at some critical concentration (\textasciitilde 0.15 wt. {\%}) of fullerene. A sudden increase was also observed upon increasing the concentration of buckyballs that remains constant with in the experimental uncertainty. \textbf{Keywords}: buckyballs, fullerene, liquid crystal, dielectric anisotropy \textbf{Acknowledgements:} RM acknowledges the financial support of the Grant Office, Slippery Rock University.

Authors

  • Jonathan Foust

    • Slippery Rock Univ
  • Angelo Visco

    • Slippery Rock Univ
  • Rizwan Mahmood

    • Slippery Rock Univ