Observation of transient current in a nanotube-doped liquid-crystal cell induced by a polarity-reversed field

Wei Lee*, Hui Yu Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

A minute addition of multiwalled carbon nanotubes as a dopant is capable of hindering the ion transport in cells of low-resistivity nematic liquid crystal containing a significant quantity of ionic impurities. This phenomenon is manifested by the weakening of transient current induced by the polarity reversal of an applied dc electric field. A simple one-dimensional model is developed to describe the observed data and to explain the essential feature pertaining to the resulting suppression of field screening.

Original languageEnglish
Pages (from-to)2962-2967
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number5 A
DOIs
StatePublished - 8 May 2007

Keywords

  • Carbon nanotube
  • Ion effect
  • Liquid crystal
  • Transient current

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