Fabrication of Langmuir-Blodgett thin films of calix[4]arenes and their gas sensing properties: Investigation of upper rim para substituent effect

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dc.authoridOzmen, Mustafa/0000-0001-5117-9168
dc.authoridCapan, Rifat/0000-0003-3222-9056
dc.authoridERTUL, SEREF/0000-0002-3239-5452
dc.contributor.authorOzmen, Mustafa
dc.contributor.authorOzbek, Zikriye
dc.contributor.authorBuyukcelebi, Sumeyra
dc.contributor.authorBayrakci, Mevlut
dc.contributor.authorErtul, Seref
dc.contributor.authorErsoz, Mustafa
dc.contributor.authorCapan, Rifat
dc.date.accessioned2025-01-27T20:59:44Z
dc.date.available2025-01-27T20:59:44Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis study reports the characterization and organic vapor sensing properties of Langmuir-Blodgett (LB) thin films of calix[4] arene derivatives that contain different numbers of tert butyl groups on their upper rims. Surface pressure-area isotherms show that very stable monolayers are formed at the air-water interface. The LB films are deposited onto different substrates, which allowed us to characterize the films by contact angle measurements, quartz crystal microbalance (QCM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The results indicate that good quality, uniform LB films can be prepared with transfer ratios of over 0.95. Meanwhile, our QCM results show that the deposition of LB film layers depends heavily on the number of p-tert-butyl groups and calix[4]arene with four p-tert-butyl groups yields the highest slope with a mass value of 1145 ng per layer. Furthermore, our AFM and SEM studies reveal a dense surface morphology for all prepared LB films. The kinetic response of calix[4]arenes containing p-tert-butyl groups and without p-tert-butyl groups as an LB film to chloroform, benzene, toluene, and ethanol vapors were investigated as a function of time. After attaching tert-butyl groups onto the calix[4]arene structure, the response of LB film to chloroform vapor increased. LB films of compounds 1-4 yield a response to all vapors and more often select chloroform with a larger, faster, and more reproducible response. We thus conclude that these calix[4]arenes could be applied to research concerning vapor sensing devices operating at room temperature. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.sponsorshipResearch Foundation of Selcuk University (BAP)
dc.description.sponsorshipThe authors would like to thank The Research Foundation of Selcuk University (BAP) for financial support of this work. We are also thankful to Cansu Ozkaya for her help during isotherm measurements.
dc.identifier.doi10.1016/j.snb.2013.09.008
dc.identifier.endpage511
dc.identifier.issn0925-4005
dc.identifier.scopus2-s2.0-84885115918
dc.identifier.scopusqualityQ1
dc.identifier.startpage502
dc.identifier.urihttps://doi.org/10.1016/j.snb.2013.09.008
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26808
dc.identifier.volume190
dc.identifier.wosWOS:000326687700067
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofSensors and Actuators B-Chemical
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectCalix[4]arene
dc.subjectVapor sensing
dc.subjectLangmuir-Blodgett
dc.subjectQuartz crystal microbalance
dc.titleFabrication of Langmuir-Blodgett thin films of calix[4]arenes and their gas sensing properties: Investigation of upper rim para substituent effect
dc.typeArticle

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