Investigation of gas sensing properties of organic ?-?* complexes spin coated thin films in dry and humid environment

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dc.authorid0000-0003-3222-9056
dc.authorid0000-0002-8965-614X
dc.contributor.authorSen, S.
dc.contributor.authorOzbek, Z.
dc.contributor.authorAydin, F.
dc.contributor.authorCapan, R.
dc.date.accessioned2026-02-03T12:03:01Z
dc.date.available2026-02-03T12:03:01Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractExposure to gaseous pollutants in both enclosed and open environments poses a significant risk to human health. In this study, an optical detection-based sensor was developed for the selective detection of toxic ammonia gas in the environment at low concentrations. Three newly synthesized organic pi-pi* charge-transfer (CT) complexes-anthracene picrate (ANTPc), phenanthrene picrate (PHENPc), and pyrene picrate (PYRPc)-obtained from polynuclear aromatic hydrocarbons and picric acid precursors (ANTP, PHENP, and PYRP, respectively), were evaluated for the first time as sensing thin film materials in gas sensor applications. These complexes were transferred as thin films onto the substrates using the spin-coating method for structural characterization and investigation of their sensor properties. The sensor analyses were conducted using the surface plasmon resonance (SPR) method. It was observed that the PHENPc-, ANTPc-, and PRYPc-based thin film sensors were highly selective to ammonia with the sensitivity values of 0.00007, 0.0003, and 0.0017 ppm-1, respectively. Although they are very similar to each other in terms of chemical structure, the thin film sensors produced from these three materials exhibited different responses to the vapors at room temperature. In the last section of the study, repeated gas detection measurements conducted under varying humidity conditions demonstrated that humidity affects the sensitivity of the sensors.
dc.description.sponsorshipanakkale Onsekiz Mart niversitesi [FBA-2023-4425.]
dc.description.sponsorshipThis work is supported by Canakkale Onsekiz Mart University Scientific Research Projects (COMU BAP) Coordination Unit. Project No: FBA-2023-4425.
dc.identifier.doi10.1007/s10854-025-16282-w
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue34
dc.identifier.scopus2-s2.0-105023578223
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s10854-025-16282-w
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34941
dc.identifier.volume36
dc.identifier.wosWOS:001630170200004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials in Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260130
dc.subjectSensor
dc.subjectPyrene
dc.subjectPhthalocyanine
dc.subjectAdsorption
dc.subjectPicrate
dc.titleInvestigation of gas sensing properties of organic ?-?* complexes spin coated thin films in dry and humid environment
dc.typeArticle

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