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dc.creatorNikolić, Maria Vesna
dc.creatorVasiljević, Zorka Z.
dc.creatorLuković, Miloljub D.
dc.creatorPavlović, Vera P.
dc.creatorVujancević, Jelena
dc.creatorRadovanović, Milan
dc.creatorKrstić, Jugoslav B.
dc.creatorVlahović, Branislav
dc.creatorPavlović, Vladimir
dc.date.accessioned2020-12-17T22:16:23Z
dc.date.available2020-12-17T22:16:23Z
dc.date.issued2018
dc.identifier.issn0925-4005
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/4705
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 (alpha-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 degrees 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 degrees C) and 50 degrees C in the relative humidity range 30-90% and 40-90%, respectively. At 42 Hz, and room temperature the impedance reduced similar to 28 times, while at 50 degrees C it reduced similar to 147 times in the relative humidity range 40-90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 degrees C and 2.64% at 50 degrees C) showing that this is a promising material for application in humidity sensing.en
dc.publisherElsevier Science Sa, Lausanne
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.rightsopenAccess
dc.sourceSensors and Actuators B-Chemical
dc.subjectPseudobrookiteen
dc.subjectFe2TiO5en
dc.subjectHumidity sensoren
dc.subjectThick filmen
dc.titleHumidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick filmsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage664
dc.citation.other277: 654-664
dc.citation.rankaM21
dc.citation.spage654
dc.citation.volume277
dc.identifier.doi10.1016/j.snb.2018.09.063
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/3225/4702.pdf
dc.identifier.scopus2-s2.0-85053789141
dc.identifier.wos000453066700081
dc.type.versionpublishedVersion


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Приказ основних података о документу