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

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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.

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Authors and Affiliations

  1. Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan, 32023, Republic of China

    W. Lee, J.-S. Gau & H.-Y. Chen

Authors
  1. W. Lee
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  2. J.-S. Gau
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  3. H.-Y. Chen
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Correspondence to W. Lee.

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Lee, W., Gau, JS. & Chen, HY. Electro-optical properties of planar nematic cells impregnated with carbon nanosolids. Appl. Phys. B 81, 171–175 (2005). https://doi.org/10.1007/s00340-005-1914-2

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  • DOI: https://doi.org/10.1007/s00340-005-1914-2

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