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A new chemical route to synthesise TM-doped (TM = Co, Fe) TiO2 nanoparticles

2008-02Journal article Open access
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dc.contributor.authorNunes, Manuel R.
dc.contributor.authorMonteiro, Olinda C.
dc.contributor.authorCastro, Ana L.
dc.contributor.authorVasconcelos, Duarte A.
dc.contributor.authorSilvestre, António Jorge
dc.date.accessioned2012-09-10T15:30:10Z
dc.date.available2012-09-10T15:30:10Z
dc.date.issued2008-02
dc.description.abstractSince the discovery of ferromagnetism well above room temperature in the Co-doped TiO2 system, diluted magnetic semiconductors based on TiO2 doped with transition metals have generated great interest because of their potential use in the development of spintronic devices. The purpose of this paper is to report on a new and swift chemical route to synthesise highly stable anatase single-phase Co- and Fe-doped TiO2 nanoparticles, with dopant concentrations of up to 10 at.-% and grain sizes that range between 20 and 30 nm. Complementary structural, microstructural and chemical analyses of the different nanopowders synthesised strongly support the hypothesis that a homogeneous distribution of the dopant element in the substitutional sites of the anatase structure has been achieved. Moreover, UV/Vis diffuse reflectance spectra of powder samples show redshifts to lower energies and decreasing bandgap energies with increasing Co or Fe concentration, which is consistent with n-type doping of the TiO2 anatase matrix. Films of Co-doped TiO2 were successfully deposited onto Si (100) substrates by the dip-coating method, with suspensions of Ti1-xCOxO2 nanoparticles in ethylene glycol. ((C)Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).por
dc.identifier.citationNunes Manuel R, Monteiro Olinda C, Castro Ana L, Vasconcelos Duarte A, Silvestre Antonio J. A new chemical route to synthesise TM-doped (TM = Co, Fe) TiO2 nanoparticles. European Journal of Inorganic Chemistry. 2008: 6, 961-965.por
dc.identifier.issn1434-1948
dc.identifier.urihttp://hdl.handle.net/10400.21/1751
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWiley-Blackwellpor
dc.subjectDiluted Magnetic Semiconductorspor
dc.subjectCo- and Fe-doped TiO2 Anatase Nanocrystallitespor
dc.subjectHydrothermal Synthesispor
dc.subjectTiCl3por
dc.subjectThin-Filmspor
dc.subjectTitanium-Dioxidepor
dc.subjectRoom-Temperaturepor
dc.subjectAnatasepor
dc.subjectSemiconductorspor
dc.subjectFerromagnetismpor
dc.subjectTransitionpor
dc.subjectDepositionpor
dc.subjectMagnetismpor
dc.subjectGrowthpor
dc.titleA new chemical route to synthesise TM-doped (TM = Co, Fe) TiO2 nanoparticlespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUSApor
oaire.citation.endPage965por
oaire.citation.issue6por
oaire.citation.startPage961por
oaire.citation.titleEuropean Journal of Inorganic Chemistrypor
person.familyNameSilvestre
person.givenNameAntónio Jorge
person.identifier.orcid0000-0001-6517-6275
person.identifier.scopus-author-id25224208600
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationda27d795-d2eb-4f8c-bfa5-7053ef20f339
relation.isAuthorOfPublication.latestForDiscoveryda27d795-d2eb-4f8c-bfa5-7053ef20f339

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