Magnetic/SiO2 nanocomposite thin films prepared by sol-gel dip coating modified method

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dc.contributor.authorBaikousi, M.en
dc.contributor.authorKostoula, O.en
dc.contributor.authorPanagiotopoulos, I.en
dc.contributor.authorBakas, T.en
dc.contributor.authorDouvalis, A. P.en
dc.contributor.authorKoutselas, I.en
dc.contributor.authorBourlinos, A. B.en
dc.contributor.authorKarakassides, M. A.en
dc.date.accessioned2015-11-24T17:35:33Z
dc.date.available2015-11-24T17:35:33Z
dc.identifier.issn0040-6090-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/14140
dc.rightsDefault Licence-
dc.subjectnanocompositeen
dc.subjectfilmen
dc.subjectdip-coatingen
dc.subjectferrofluiden
dc.subjectmagnetiteen
dc.subjectmaghemiteen
dc.subjectnanoparticlesen
dc.subjectquantum confinementen
dc.subjectiron-oxide nanoparticlesen
dc.subjectinfrared-spectroscopyen
dc.subjectmagnetite fe3o4en
dc.subjectgamma-fe2o3en
dc.subjectpolymersen
dc.subjectdisorderen
dc.subjectspectraen
dc.subjectglassesen
dc.subjectsilicaen
dc.titleMagnetic/SiO2 nanocomposite thin films prepared by sol-gel dip coating modified methoden
heal.abstractNanocomposite thin films of Spinel Iron-Oxide and SiO2 have been prepared with sol-gel dip-coating technique involving the synthesis of a ferrofluid, which has been stabilized in absence of organic media and led to the formation of magnetic nanoparticles. Structural and morphological characteristics of the synthesized ferrofluid and the relevant derived nanocomposite films are reported, as determined from X-ray diffraction (XRD), Raman, Fourier-transform infrared, Mossbauer and Ultraviolet-visible experimental techniques. Scanning electron microscopy, atomic force and magnetic force microscopy results are also reported. The synthesized ferrofluid, composed of magnetic nanoparticles of an XRD estimated average size of 18 nm, exhibit Raman spectra characteristic of a maghemite phase. These ferromagnetic nanoparticles retained their nanostructure after being inserted into the as prepared films. After heat treatment under Ar atmosphere, the maghemite nanoparticles were transformed to non-stoichiometric magnetite, providing the final composite material with useful potential application characteristics. The calcined films reported here exhibit crack-free morphology, consisting of aggregated silica/magnetic nanoparticles, with a final average size of c.a. 100 nm, while the film roughness shows a maximum peak to peak of C.a. 10 nm. (C) 2011 Elsevier B.V. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.tsf.2011.06.110-
heal.identifier.secondary<Go to ISI>://000297441200026-
heal.journalNameThin Solid Filmsen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2011-
heal.publisherElsevieren
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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