Faster electro-optical response characteristics of a carbon-nanotube- nematic suspension

Hui Yu Chen*, Wei Lee, Noel A. Clark

*Corresponding author for this work

Research output: Contribution to journalArticle

132 Scopus citations

Abstract

The response times of rotational molecular orientation of neat and carbon-nanotube-doped nematic liquid crystals were acquired through the measurement of transient current induced by a direct-current step voltage and from optical transmission data. A model based on the dielectric displacement current was developed to describe the electric field dependence of the response and to yield a rotational viscosity that would decrease with increasing concentration of carbon nanotubes. Optical dynamic response also showed a reduced rotational viscosity, with the lightly doped cells exhibiting a faster relaxation process than that of the neat cell.

Original languageEnglish
Article number033510
JournalApplied Physics Letters
Volume90
Issue number3
DOIs
StatePublished - 29 Jan 2007

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