Nanocomposite zinc oxide nanorods capped with oleic acid (ZOR) with positive dielectric anisotropy liquid crystal (LC) 4 '-octyl-4-biphenylcarbonitrile (8CB) filled in unaligned cells exhibit homeotropic alignment of host LC molecules. Further, systematic investigation of the textural, dielectric, and conductivity properties of nanocomposites filled in planar cells is performed with increasing concentration of nanorods. At a nanorod concentration <= 0.2 wt % in 8CB, the order parameter of nanocomposite samples is found to be increasing and ionic conductivity is found to be decreasing as compared to pure LC. Beyond 0.3 wt % concentration of nanorods in 8CB, vertical alignment (VA) of host LC is observed even in a planar aligned cell. The VA of LC molecules in ZOR nanocomposites is confirmed through attenuated total reflection-Fourier transform infrared absorption spectra studies.
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Lee, You-Jin
Kim, Young-Ki
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Kim, Young-Ki
Jo, So In
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Hanyang Univ, Dept Elect & Commun Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Jo, So In
Bae, Kwang-Soo
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Bae, Kwang-Soo
Choi, Byong-Deok
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Hanyang Univ, Dept Elect & Commun Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Choi, Byong-Deok
Kim, Jae-Hoon
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Hanyang Univ, Dept Elect & Commun Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Kim, Jae-Hoon
Yu, Chang-Jae
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Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
Hanyang Univ, Dept Elect & Commun Engn, Seoul 133791, South KoreaHanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea