Development an optical sensor using lyotropic cholesteric liquid crystals for the detection of toxic gases

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dc.contributor.authorKemiklioglu E.
dc.contributor.authorGurboga B.
dc.contributor.authorTuncgovde E.B.
dc.date.accessioned2024-07-22T08:05:20Z
dc.date.available2024-07-22T08:05:20Z
dc.date.issued2021
dc.description.abstractIn the current study, a lyotropic cholesteric liquid crystal (ChLC) based sensor for the identification of vapors of polar (toluene and phenol) and apolar (1,2 dicholoropropane) toxic gases was investigated. The lyotropic ChLC sample including cholesteryl oleyl carbonate, cholesteryl pelargonate, and cholesteryl benzoate was supported on the chemically modified glass surfaces as an optical sensor for the detecting of these toxic gases vapors. The glass surfaces were modified by coating Dimethyloctadecyl [3-(trimethoxysilyl) propyl] ammonium chloride (DMOAP). The optical signal generated by the incorporation of different toxic gases vapors in the lyotropic ChLC layers which disturbs the pitch length. These toxic gases were evaporated at different temperatures and the exposure time was differentiated. Increasing solvent evaporation temperature lead a shift in the wavelength maximum to smaller wavelengths which can be observed by a naked eye. © 2021 Elsevier GmbH
dc.identifier.DOI-ID10.1016/j.ijleo.2021.168110
dc.identifier.issn00304026
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13077
dc.language.isoEnglish
dc.publisherElsevier GmbH
dc.subjectChlorine compounds
dc.subjectCholesteric liquid crystals
dc.subjectGas detectors
dc.subjectGlass
dc.subjectOptical Kerr effect
dc.subjectOptical sensors
dc.subjectPhenols
dc.subject1,2, dicholoropropane
dc.subjectApolar gas
dc.subjectGas detection
dc.subjectGlass surfaces
dc.subjectLiquid crystal sensors
dc.subjectLyotropic cholesteric liquid crystal
dc.subjectLyotropic liquid crystal
dc.subjectLyotropic liquid crystal sensor
dc.subjectPolar gas
dc.subjectToxic gas
dc.subjectToluene
dc.titleDevelopment an optical sensor using lyotropic cholesteric liquid crystals for the detection of toxic gases
dc.typeArticle

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