The impact of NiPc additive and laser light dielectric properties of E63 nematic liquid crystal

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dc.contributor.authorKılıç, Mehmet
dc.contributor.authorÖzdemir, Zeynep Güven
dc.contributor.authorCanlı, Nimet Yılmaz
dc.contributor.authorBulgurcuoğlu, Ayşe Evrim
dc.contributor.authorKöysal, Oğuz
dc.contributor.authorYılmaz, Ömer
dc.contributor.authorOkutan, Mustafa
dc.date.accessioned2020-04-30T23:33:47Z
dc.date.available2020-04-30T23:33:47Z
dc.date.issued2016
dc.departmentDÜ, Fen-Edebiyat Fakültesi, Fizik Bölümüen_US
dc.descriptionBulgurcuoglu, Ayse Evrim/0000-0001-8373-9764en_US
dc.descriptionWOS: 000392617400012en_US
dc.description.abstractIn this work, the electrical properties of the pure nematic liquid crystal (E63) and different concentrations Nickel Phthalocyanine (NiPc) doped (E63+1% NiPc, E63+3% NiPc and E63+5% NiPc) E63 have been investigated by means of dielectric spectroscopy measurements under laser light illumination. The variations of the real (epsilon') and imaginary (epsilon") parts of dielectric constant with frequency have been studied. According to e0 versus voltage graphics, threshold voltage, Vth has been calculated. It has been observed that while NiPc doping increases the Vth, the application of laser light has a remarkable decreasing effect on threshold voltage, Vth. The absorption coefficients, a, and relaxation times, tau, have also been calculated for determining the relaxation mechanism. It has been revealed that the relaxation type of these materials is nearly-Debye type regardless of the laser illumination. Moreover, the dielectric strength has been analysed both Debye and Cole-Cole models. Furthermore, conductivity mechanisms of these composites under dark and laser illumination have been investigated for four frequency regions. It has been shown that conductivity mechanism of the composites are not affected by application of laser light above omega = 6x10(4) rad/s.en_US
dc.description.sponsorshipYildiz Technical University Scientific Research Projects Coordination DepartmentYildiz Technical University [2014-01-GEP05]en_US
dc.description.sponsorshipThis research has been supported by Yildiz Technical University Scientific Research Projects Coordination Department with the Project Number 2014-01-GEP05.en_US
dc.identifier.doi10.1080/00150193.2016.1254586en_US
dc.identifier.endpage113en_US
dc.identifier.issn0015-0193
dc.identifier.issn1563-5112
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage102en_US
dc.identifier.urihttps://doi.org/10.1080/00150193.2016.1254586
dc.identifier.urihttps://hdl.handle.net/20.500.12684/5043
dc.identifier.volume505en_US
dc.identifier.wosWOS:000392617400012en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofFerroelectricsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDielectric propertiesen_US
dc.subjectconductivity mechanismen_US
dc.subjectlaser light illuminationen_US
dc.subjectDebye modelen_US
dc.subjectCole-Cole modelen_US
dc.titleThe impact of NiPc additive and laser light dielectric properties of E63 nematic liquid crystalen_US
dc.typeArticleen_US

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