Electrical Parameters of Different Concentrations of Methyl Red in Fullerene Doped Liquid Crystal | Zendy

Mustafa Okutan | Zendy; Oğuz Köysal | Zendy; Sait Eren San | Zendy; Yavuz Köysal | Zendy

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Electrical Parameters of Different Concentrations of Methyl Red in Fullerene Doped Liquid Crystal

Author(s) -

Mustafa Okutan,

Oğuz Köysal,

Sait Eren San,

Yavuz Köysal

Publication year - 2012

Publication title -

isrn nanomaterials

Language(s) - English

Resource type - Journals

ISSN - 2090-8741

DOI - 10.5402/2012/596125

Subject(s) - liquid crystal , dielectric spectroscopy , anisotropy , materials science , relaxation (psychology) , dielectric , doping , analytical chemistry (journal) , fullerene , permittivity , crystal (programming language) , biasing , voltage , chemistry , optics , optoelectronics , organic chemistry , electrochemistry , electrode , electrical engineering , engineering , psychology , social psychology , physics , programming language , computer science

Dielectric anisotropy and relaxation time of a liquid crystal (LC) system, containing fullerene and methyl red (MR) dye, were studied via impedance spectroscopy technique under a bias voltage. Dye concentration is tried to be 0.1%, 0.5%, and 1% in host nematic liquid crystal coded E7. Dielectric permittivity and dielectric anisotropy values of the samples were investigated between the frequency ranges of 100–10 MHz. It is seen that dielectric anisotropy is strongly affected by doping ratio and this value decreases with increasing dye. Also, relaxation time τ and critical frequency values were calculated depending on voltage of different dye ratios.

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