Temperature-dependent electrical and dielectric properties of nematic liquid crystals doped with ferroelectric particles

Yu Cheng Hsiao, Sheng Miao Huang, En Rong Yeh, Wei Lee

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We report on the temperature dependence of dielectric properties of nematic liquid crystals impregnated with BaTiO3 (BTO) ferroelectric nanoparticles. The behavior of ion transport at low frequencies is discussed by means of dielectric spectroscopy, which allows the ionic concentration and the relaxation time of electrode polarization to be deduced. The experimental results imply that the ferroelectric nanoparticles can not only increase the traveling time of ions between two electrodes but also suppress the buildup of the electric double layers. Verified by the voltage holding ratio of cells containing various contents of BTO nanoparticles, it is obvious that doping BTO into liquid crystals is a low-cost and easy way to improve the device performance.

Original languageEnglish
Pages (from-to)61-65
Number of pages5
JournalDisplays
Volume44
DOIs
Publication statusPublished - Sep 1 2016
Externally publishedYes

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Keywords

  • Dielectric relaxation
  • Display devices
  • Electrode polarization
  • Liquid crystals

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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