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Volume 42 Issue 2
Feb.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(2): 400-405.
XU Lihong, ZHAO Dongyu, LIU Bin, et al. Effects of Ni particles with different morphologies on electro-optical properties of nematic liquid crystal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 400-405. doi: 10.13700/j.bh.1001-5965.2015.0126(in Chinese)
Citation: XU Lihong, ZHAO Dongyu, LIU Bin, et al. Effects of Ni particles with different morphologies on electro-optical properties of nematic liquid crystal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 400-405. doi: 10.13700/j.bh.1001-5965.2015.0126(in Chinese)
shu

Effects of Ni particles with different morphologies on electro-optical properties of nematic liquid crystal

doi: 10.13700/j.bh.1001-5965.2015.0126

  • School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 11 Mar 2015
  • Publish Date: 20 Feb 2016
    Abstract
  • Twisted nematic (TN) liquid crystal display mode cells doped with different Ni particles were prepared, such as Ni bowls-like particles, Ni flowers particles and Ni spheres particles. The effects of different Ni particles on the threshold voltage, saturation voltage, contrast ratio and response time of nematic liquid crystal (NLC) display mode cells were investigated with a liquid crystal display parameters tester. It is found that the addition of Ni particles with different morphologies decrease the threshold voltage and the saturation voltage, increase the cantrast ratio and reduce the response times significantly. Especially, the TN cells doped with the Ni bowls-like particles have the best properties, the driving voltage could be reduced by 13.77%, the contrast ratio increases by 35.55% and response times decreases to 9.390 ms. The experiments indicate that the different shapes, structures and surface area of Ni particles have obvious effects on the electro-optical properties of liquid crystals. The larger the surface areas and the curvature of the bowls-like shape are, the better the electro-optical properties are.

     

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