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dc.creatorNikolić, Maria Vesna
dc.creatorVasiljević, Zorka Ž.
dc.creatorLuković, Miloljub D.
dc.creatorPavlović, Vera P.
dc.creatorVujančević, Jelena
dc.creatorRadovanović, Milan
dc.creatorKrstić, Jugoslav
dc.creatorVlahović, Branislav
dc.creatorPavlović, Vladimir B.
dc.date.accessioned2018-12-18T22:43:27Z
dc.date.available2019-03-19
dc.date.issued2018
dc.identifier.issn0925-4005
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0925400518316836
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/4605
dc.description.abstractPseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45014/RS//
dc.rightsembargoedAccess
dc.sourceSensors and Actuators B: Chemical
dc.subjectFeTiO
dc.subjecthumidity sensors
dc.subjectpseudobrookite
dc.subjectthick films
dc.titleHumidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
dc.typearticleen
dc.rights.licenseBY-NC-ND
dcterms.abstractРадовановић, Милан; Луковић, Милољуб Д.; Павловић, Владимир Б.; Влаховић, Бранислав; Крстић, Југослав; Николић, Мариа Весна; Васиљевић, Зорка Ж.; Павловић, Вера П.; Вујанчевић, Јелена;
dc.citation.spage654
dc.citation.epage664
dc.citation.volume277
dc.identifier.wos000453066700081
dc.identifier.doi10.1016/j.snb.2018.09.063
dc.identifier.scopus2-s2.0-85053789141
dc.description.otherThis is the peer-reviewed version of the article: Nikolic, M.V., Vasiljevic, Z.Z., Lukovic, M.D., Pavlovic, V.P., Vujancevic, J., Radovanovic, M., Krstic, J.B., Vlahovic, B., Pavlovic, V.B., 2018. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. Sensors and Actuators B: Chemical 277, 654–664. [https://doi.org/10.1016/j.snb.2018.09.063]
dc.type.versionpublishedVersion


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