Show simple item record

dc.contributor.authorBueno, L. A.
dc.contributor.authorBertholdo, R.
dc.contributor.authorBarros, D. A.
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorRibeiro, SJL
dc.identifier.citationSol-gel Optics Vi. Bellingham: Spie-int Soc Optical Engineering, v. 4804, p. 121-129, 2002.
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.publisherSpie - Int Soc Optical Engineering
dc.relation.ispartofSol-gel Optics Vi
dc.sourceWeb of Science
dc.subjectinverse opalspt
dc.subjectlanthanide ionspt
dc.titleRare earth doped synthetic opals and inverse opalsen
dc.typeTrabalho apresentado em evento
dcterms.rightsHolderSpie-int Soc Optical Engineering
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
Localize o texto completo

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record