Molecular orientation of nickel phthalocyanine doped nematic liquid crystal composite under magnetic field


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Ozdemir Z. , Canli N. Y. , Kılıç M. , Koysal O., Yılmaz O., Okutan M.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, cilt.634, ss.1-11, 2016 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 634
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1080/15421406.2016.1177889
  • Dergi Adı: MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Sayfa Sayısı: ss.1-11

Özet

The electrical and dielectric properties of the nematic liquid crystal (E63) and Nickel Phthalocyanine (NiPc) doped E63 composite have been investigated by dielectric spectroscopy under 0-0.4T magnetic field. It has been observed that NiPc doping and external magnetic field, B decrease threshold voltage. Moreover, conductivity of the composite has an increasing tendency with magnetic field. Furthermore, a significant decrease in relaxation frequency with B has been interpreted as the simplification of molecular orientation. Hence, NiPc doping enhances the magnetic sensitivity of E63 and increases molecular orientation ability and conductivity.

The electrical and dielectric properties of the nematic liquid crystal
(E63) and Nickel Phthalocyanine (NiPc) doped E63 composite have been
investigated by dielectric spectroscopy under 0–0.4 T magnetic field.
It has been observed that NiPc doping and external magnetic field, B
decrease threshold voltage. Moreover, conductivity of the composite
has an increasing tendency with magnetic field. Furthermore, a significant
decrease in relaxation frequencywith B has been interpreted as the
simplification of molecular orientation. Hence, NiPc doping enhances
themagnetic sensitivity of E63 and increases molecular orientation ability
and conductivity.