Electro-optical properties of planar nematic cells impregnated with carbon nanosolids

Wei Lee*, J. S. Gau, H. Y. Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

We report electro-optical effects in planar-aligned liquid-crystal cells of pristine and doped calamitics in the presence of dc voltage. The doped cells comprise both a nematic host and a minute amount of either buckminsterfullerene or multiwalled carbon nanotubes. The voltage-transmittance and voltage-capacitance hystereses were observed from the sample cells in the range of applied dc voltage up to 8 V. Experimental evidence indicates that a nanoscale carbon dopant can affect the behavior of a nematic in terms of ion-charge effects and that doping with nanotubes can effectively reduce the driving voltage.

Original languageEnglish
Pages (from-to)171-175
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume81
Issue number2-3
DOIs
StatePublished - 1 Jul 2005

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