An experimental optimization study for concentration and laser power effects in the fullerene-C60 and azo dye doped guest-host liquid crystal systems

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dc.authoridOkutan, Mustafa/0000-0002-5707-8090
dc.authoridSAN, SAIT EREN/0000-0001-5042-4555
dc.contributor.authorOkutan, M.
dc.contributor.authorKoysal, O.
dc.contributor.authorSan, S. E.
dc.contributor.authorYakuphanoglu, F.
dc.date.accessioned2025-01-27T20:17:15Z
dc.date.available2025-01-27T20:17:15Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe current-voltage characteristics of a famous guest-host liquid crystal system have been investigated under dark and laser illumination conditions. Dependency of current modulation with respect to concentration and laser power gives some optimization possibilities and estimations on the reorientation mechanisms of the liquid crystals. The current-voltage character of pure E7 is almost unchanged with laser pumping, while the fullerene and dye doping are enhancing effects in their individual and collective usage. The negative resistance effect was observed for some certain concentrations of the dye and C-60, and this peculiarity is shown to be switched with laser illumination. The mobility of the doped LC samples was calculated by transient current measurements and its dependency on the dye concentration and the laser power was investigated. It is evaluated that the effect of methyl red is a critical parameter in photoconductivity applications of liquid crystals. (c) 2009 Elsevier B.V. All rights reserved
dc.identifier.doi10.1016/j.optcom.2009.08.006
dc.identifier.endpage4417
dc.identifier.issn0030-4018
dc.identifier.issue22
dc.identifier.scopus2-s2.0-70349239171
dc.identifier.scopusqualityQ2
dc.identifier.startpage4413
dc.identifier.urihttps://doi.org/10.1016/j.optcom.2009.08.006
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21530
dc.identifier.volume282
dc.identifier.wosWOS:000271367500021
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofOptics Communications
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPhotoconductivity
dc.subjectFullerene
dc.subjectMethyl red
dc.subjectNematic liquid crystal
dc.titleAn experimental optimization study for concentration and laser power effects in the fullerene-C60 and azo dye doped guest-host liquid crystal systems
dc.typeArticle

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