Enhancing NIR emission in ZnAl2O4:Nd,Ce nanofibers by co-doping with Ce and Nd

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dc.contributor.authorROJAS-HERNANDEZ, ROCIO E.pt_BR
dc.contributor.authorRUBIO-MARCOS, FERNANDOpt_BR
dc.contributor.authorGORNI, GIULIOpt_BR
dc.contributor.authorMARINI, CARLOpt_BR
dc.contributor.authorDANILSON, MATIpt_BR
dc.contributor.authorPASCUAL, LAURApt_BR
dc.contributor.authorICHIKAWA, RODRIGO U.pt_BR
dc.contributor.authorHUSSAINOVA, IRINApt_BR
dc.contributor.authorFERNANDEZ, JOSE F.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2021-07-19T19:34:00Z
dc.date.available2021-07-19T19:34:00Z
dc.date.issued2021pt_BR
dc.description.abstractDevelopment of new near infrared luminescent (NIR) emitters improves our understanding of their fundamental structure–property relationships. The ability to use efficient energy transfer to convert ultraviolet or visible light photons to enhance the NIR emission has attracted a great deal of attention in down-conversion applications. Taking advantage of the sol–gel impregnation process and growth of materials along a support or template, core–shell structured nanofibers of ZnAl2O4 – based ceramic doped with cerium and neodymium were synthesized with the help of an elaborate facile and cost-efficient strategy. The color-tunable emissions make this material a suitable host for a wide range of applications, e.g., bio-imaging, security markers, imaging devices, optical coatings, and solar cells. This research correlates the defects and the remarkable optical properties of the developed structures. Specified conditions of sol–gel processing combined with the incorporation of rare-earth elements in various concentrations provide the possibility of tuning the ratio between Ce3+ and Ce4+ in the nanofibers with an average diameter of 50 nm and, therefore, their functional response. It is important to clarify the role of trivalent and tetravalent cerium cations in the modulation of NIR emission to establish the luminescence mechanism. The NIR emitter luminescent compound ZnAl2O4:Nd,Ce, which adopts a spinel-type structure, is studied using the X-ray absorption near-edge structure technique. For the first time, this study reveals the energy transfer from Ce3+ to Nd3+ and the enhancement of the NIR emission due to the presence of Ce4+ in the ZnAl2O4:Nd,Ce spinel compound. Cytotoxicity analyses suggest the viability of the synthesized nanofibers, which opens new avenues in bio-imaging applications.pt_BR
dc.format.extent657-670pt_BR
dc.identifier.citationROJAS-HERNANDEZ, ROCIO E.; RUBIO-MARCOS, FERNANDO; GORNI, GIULIO; MARINI, CARLO; DANILSON, MATI; PASCUAL, LAURA; ICHIKAWA, RODRIGO U.; HUSSAINOVA, IRINA; FERNANDEZ, JOSE F. Enhancing NIR emission in ZnAl2O4:Nd,Ce nanofibers by co-doping with Ce and Nd: a promising biomarker material with low cytotoxicity. <b>Journal of Materials Chemistry C</b>, v. 9, n. 2, p. 657-670, 2021. DOI: <a href="https://dx.doi.org/10.1039/d0tc04752j">10.1039/d0tc04752j</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32025.
dc.identifier.doi10.1039/d0tc04752jpt_BR
dc.identifier.fasciculo2pt_BR
dc.identifier.issn2050-7526pt_BR
dc.identifier.percentilfi82.48pt_BR
dc.identifier.percentilfiCiteScore92.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32025
dc.identifier.vol9pt_BR
dc.relation.ispartofJournal of Materials Chemistry Cpt_BR
dc.rightsopenAccesspt_BR
dc.subjectnanofibers
dc.subjectnear infrared radiation
dc.subjectzinc
dc.subjectcerium
dc.subjectneodymium
dc.titleEnhancing NIR emission in ZnAl2O4:Nd,Ce nanofibers by co-doping with Ce and Ndpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorRODRIGO UCHIDA ICHIKAWA
ipen.codigoautor10118
ipen.contributor.ipenauthorRODRIGO UCHIDA ICHIKAWA
ipen.date.recebimento21-07
ipen.identifier.fi8.067pt_BR
ipen.identifier.fiCiteScore11.8
ipen.identifier.ipendoc27796pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods7
ipen.range.fi6.000 ou mais
ipen.range.percentilfi75.00 - 100.00
ipen.subtituloa promising biomarker material with low cytotoxicitypt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication0f8315c9-e186-43ee-ba65-2c03092b4d04
relation.isAuthorOfPublication.latestForDiscovery0f8315c9-e186-43ee-ba65-2c03092b4d04
sigepi.autor.atividadeICHIKAWA, RODRIGO U.:10118:730:Npt_BR
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