Dielectric properties of three liquid crystal polymers

Peng Yang, Yoshimichi Ohki*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Dielectric properties of three kinds of liquid crystal polymers (LCPs) were investigated by measuring their thermal properties, thermally stimulated polarization and depolarization currents, and complex dielectric permittivity. To make clear the differences among the three LCP samples, complex electric modulus was introduced, which was found to be effective to suppress the effects of large conduction currents at high temperatures. Moreover, the slopes of the frequency dependence of e{open}[r' and e{open}]r'' are different below and above the phase transition temperature, indicating that the accumulation of charges occurs in front of the electrodes. The experimental results indicate that the phase transition has a significant influence on both the electrical conduction and dielectric relaxation for all LCPs.

Original languageEnglish
Pages (from-to)609-613
Number of pages5
JournalIEEJ Transactions on Electrical and Electronic Engineering
Issue number6
Publication statusPublished - 2015 Nov


  • Complex permittivity
  • Dielectric properties
  • Electric modulus
  • Liquid crystal polymers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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