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, EB
dc.date.accessioned2024-07-18T11:53:17Z
dc.date.available2024-07-18T11:53:17Z
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.
dc.identifier.issn0030-4026
dc.identifier.other1618-1336
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/5470
dc.language.isoEnglish
dc.publisherELSEVIER GMBH
dc.subjectSOLVENT VAPOR DETECTION
dc.subjectREAL-TIME
dc.subjectPOLYMER
dc.subjectIDENTIFICATION
dc.subjectSURFACES
dc.subjectARRAYS
dc.subjectLASER
dc.titleDevelopment an optical sensor using lyotropic cholesteric liquid crystals for the detection of toxic gases
dc.typeArticle

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