Phase and dielectric behaviors of a polymorphic liquid crystal doped with graphene nanoplatelets

Po Chang Wu, Wei Lee

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

We report on the phase behavior and dielectric properties of the liquid crystal (LC) 4′-n-octyloxy-4-cyanobiphenyl dispersed with graphene nanoplatelets (GNPs). The temperature-dependent dielectric permittivity at 104 Hz and its derivative with respect to the temperature reveal that the incorporation of GNPs in a LC cell leads to the modification of crystalline polymorphism and shift in phase transition temperature owing to the enhanced positional and orientational order. Additionally, the dielectric data between 1 and 103 Hz show that the dopant reduces the ionic concentration and alters the diffusivity in the LC mesophases.

Original languageEnglish
Article number162904
JournalApplied Physics Letters
Volume102
Issue number16
DOIs
StatePublished - 22 Apr 2013

Fingerprint Dive into the research topics of 'Phase and dielectric behaviors of a polymorphic liquid crystal doped with graphene nanoplatelets'. Together they form a unique fingerprint.

  • Cite this