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Rare earth doped synthetic opals and inverse opals

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dc.contributor.authorBueno, L. A.
dc.contributor.authorBertholdo, R.
dc.contributor.authorBarros, D. A.
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorRibeiro, SJL
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:28:07Z
dc.date.available2014-05-20T15:28:07Z
dc.date.issued2002-01-01
dc.description.abstractMonodisperse spheres of silica and latex were obtained by a surfactant free styrene polimerization and the Stober method respectively. Controlling settling either by centrifugation or by dip-coating colloidal crystals could be obtained. Silica inverse opals were prepared by using the latex colloidal crystals as templates and TEOS/ethanol solution. Eu3+ containing silica spheres were obtained dispersing silica spheres in Eu(NO3)(3) isopropanol solutions. Emission spectra suggest the formation of an amorphous Eu3+ containing phase well adhered at the spheres surface. The utilization of solutions of trifluoroacetates salts of Pb2+ and Eu3+ was observed to destroy the silica spherical pattern when samples are treated at 1000degreesC. In that case nanocrystals of PbF2 and amorphous silica were obtained after heat treatment.en
dc.description.affiliationUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.format.extent121-129
dc.identifierhttp://dx.doi.org/10.1117/12.456543
dc.identifier.citationSol-gel Optics Vi. Bellingham: Spie-int Soc Optical Engineering, v. 4804, p. 121-129, 2002.
dc.identifier.doi10.1117/12.456543
dc.identifier.issn0277-786X
dc.identifier.lattes2998503841917815
dc.identifier.lattes6446047463034654
dc.identifier.urihttp://hdl.handle.net/11449/38009
dc.identifier.wosWOS:000180000400016
dc.language.isoeng
dc.publisherSpie - Int Soc Optical Engineering
dc.relation.ispartofSol-gel Optics Vi
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectopalspt
dc.subjectinverse opalspt
dc.subjectlanthanide ionspt
dc.titleRare earth doped synthetic opals and inverse opalsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://proceedings.spiedigitallibrary.org/ss/TermsOfUse.aspx
dcterms.rightsHolderSpie-int Soc Optical Engineering
dspace.entity.typePublication
unesp.author.lattes2998503841917815
unesp.author.lattes6446047463034654
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Inorgânica - IQARpt

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Araraquara - IQAR - Instituto de Química