Effect of partial preferential orientation and distortions in octahedral clusters on the photoluminescence properties of FeWO4 nanocrystals

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dc.contributor.authorAlmeida, M. A. P.
dc.contributor.authorCavalcante, L. S. [UNESP]
dc.contributor.authorMorilla-Santos, C.
dc.contributor.authorDalmaschio, C. J.
dc.contributor.authorRajagopal, S.
dc.contributor.authorLi, M. Siu
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionBharathiar Univ
dc.date.accessioned2014-05-20T15:30:22Z
dc.date.available2014-05-20T15:30:22Z
dc.date.issued2012-01-01
dc.description.abstractThis communication is a report of our initial research to obtain iron tungstate (FeWO4) nanocrystals by the microwave-hydrothermal method at 170 degrees C for 45 min. X-ray diffraction patterns showed that the FeWO4 nanocrystals prepared with polyethylene glycol-200 have a partial preferential orientation in the (011) plane in relation to other nanocrystals prepared with sodium bis(2-ethylhexyl) sulfosuccinate and water. Rietveld refinement data indicates that all nanocrystals are monophasic with wolframite-type monoclinic structures and exhibit different distortions on octahedral [FeO6]/[WO6] clusters. High resolution transmission electron microcopy revealed an oriented attachment mechanism for the growth of aggregated FeWO4 nanocrystals. Finally, we observed that the photoluminescence properties of these nanocrystals are affected by partial preferential orientation in the (011) plane and distortions on [FeO6]/[WO6] clusters.en
dc.description.affiliationUNESP, Inst Chem, INCTMN, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Chem, LIEC, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationMAv DF Univ Estadual, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUniv São Paulo, IFSC, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationBharathiar Univ, Dept Phys, Thin Films & Nanomat Lab, Coimbatore 641046, Tamil Nadu, India
dc.description.affiliationUnespUNESP, Inst Chem, INCTMN, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 09/53189-8
dc.description.sponsorshipIdFAPESP: 09/50303-4
dc.description.sponsorshipIdCNPq: 159710/2011-1
dc.format.extent7127-7132
dc.identifierhttp://dx.doi.org/10.1039/c2ce25771h
dc.identifier.citationCrystengcomm. Cambridge: Royal Soc Chemistry, v. 14, n. 21, p. 7127-7132, 2012.
dc.identifier.doi10.1039/c2ce25771h
dc.identifier.issn1466-8033
dc.identifier.urihttp://hdl.handle.net/11449/39765
dc.identifier.wosWOS:000309414300006
dc.language.isoeng
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofCrystEngComm
dc.relation.ispartofjcr3.304
dc.relation.ispartofsjr0,998
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEffect of partial preferential orientation and distortions in octahedral clusters on the photoluminescence properties of FeWO4 nanocrystalsen
dc.typeArtigo
dcterms.licensehttp://www.rsc.org/AboutUs/Copyright/Authordeposition.asp
dcterms.rightsHolderRoyal Soc Chemistry
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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