The Role of Rubrene Concentration on Dielectric Parameters of Nematic Liquid Crystal

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dc.contributor.authorKocakülah, Gülsüm
dc.date.accessioned2024-08-23T16:08:07Z
dc.date.available2024-08-23T16:08:07Z
dc.date.issued2023en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractIn this study, the dielectric parameters of E7 coded nematic liquid crystal (NLC) composites containing the different amounts of rubrene fluorescent dye were investigated. E7, E7+0.5 wt.% Rubrene, and E7+1.0 wt.% Rubrene samples were prepared. Frequency dependent dielectric constants (?? and ???), dielectric anisotropy (???), and ac conductivity (?ac) graphs of rubrene doped E7 NLC composites were obtained by dielectric spectroscopy method and compared with pure E7 NLC. By using these graphs, relaxation frequency (fR), relaxation time (?R), dielectric strength (???), and crossover frequency (fc) parameters of the E7 NLC and its rubrene doped composites were determined. An increase in fR from 3.045 MHz to 3.697 MHz for 0 V and from 627 kHz to 686 kHz for 40 V was observed with increasing rubrene concentration. On the other hand, a decrease in ?R from 0.052 ?s to 0.043 ?s for 0 V and from 0.254 ?s to 0.232 ?s for 40 V was seen with increasing rubrene concentration. Furthermore, an increase in fc from 1.145 MHz to 1.298 MHz was obtained with increasing rubrene concentration. The results show that the dielectric parameters change with the concentration of rubrene and it is thought that this study will provide a basis for investigating the dielectric properties of rubrene doped NLC composites. Moreover, it is concluded that the produced composites are a suitable base material for electro-optical device applications such as smart displays, photonics and electrical circuit elements.en_US
dc.identifier.doi10.17350/HJSE19030000307
dc.identifier.endpage199en_US
dc.identifier.issn2149-2123
dc.identifier.issn2148-4171
dc.identifier.issue3en_US
dc.identifier.startpage193en_US
dc.identifier.trdizinid1201074en_US
dc.identifier.urihttps://doi.org/10.17350/HJSE19030000307
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1201074
dc.identifier.urihttps://hdl.handle.net/20.500.12684/15103
dc.identifier.volume10en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.institutionauthorKocakülah, Gülsümen_US
dc.language.isoenen_US
dc.relation.ispartofHittite Journal of Science and Engineeringen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleThe Role of Rubrene Concentration on Dielectric Parameters of Nematic Liquid Crystalen_US
dc.typeArticleen_US

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