Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/344659
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampMartínez, Eduardo Davidpt_BR
dc.contributor.authorunicampLesseux, Guilherme Gorgenpt_BR
dc.contributor.authorunicampUrbano, Ricardo Rodriguespt_BR
dc.contributor.authorunicampRettori, Carlospt_BR
dc.typeArtigopt_BR
dc.titleCrystal-field effects in Er3+- and Yb3+-doped hexagonal NaYF4 nanoparticlespt_BR
dc.contributor.authorGarcía-Flores, A. F.pt_BR
dc.contributor.authorMatias, J. S.pt_BR
dc.contributor.authorGarcia, D. J.pt_BR
dc.contributor.authorMartínez, E. D.pt_BR
dc.contributor.authorCornaglia, P. S.pt_BR
dc.contributor.authorLesseux, G. G.pt_BR
dc.contributor.authorRibeiro, R. A.pt_BR
dc.contributor.authorUrbano, R. R.pt_BR
dc.contributor.authorRettori, C.pt_BR
dc.subjectLuminescênciapt_BR
dc.subjectItérbiopt_BR
dc.subjectTerras raraspt_BR
dc.subjectLuminescencept_BR
dc.subjectYtterbiumpt_BR
dc.subjectRare earthspt_BR
dc.description.abstractSince the up-conversion phenomenon in rare-earths (REs) doped NaYF4 is strongly affected by the crystal electric field (CF), determining the CF parameters, wave functions, and scheme of the energy levels of the RE J multiplets could be crucial to improve and tune the up-conversion efficiency. In this work, the temperature and magnetic field dependent magnetization of NaY1-x[Er(Yb)](x)F-4 hexagonal nanoparticles (NPs) is reported. The data were best fit using the appropriated CF Hamiltonian for the J = 15/2 (J = 7/2) ground state multiplet of Er3+ (Yb3+) ions. The B-2(0), B-4(0), B-6(0), and B-6(6) CF parameters were considered in the Hamiltonian for RE ions located at the hexagonal C-3h point symmetry site of the NaYF4 host lattice. These results allowed us to predict an overall CF splitting of similar to 214 (similar to 356 K) for Er3+ (Yb3+) and the wave functions and their energy levels for the J = 15/2 (J = 7/2) ground state multiplet which are in good agreement with the low temperature electron spin resonance experiments. Besides, our measurements allowed us to calculate all the excited CF J multiplets that yield to a good estimation of the up-conversion light emission linewidth. The nonlinear optical light emission of the studied NaY1-x[Er(Yb)](x)F-4 hexagonal NPs was also compared with the most efficient up-conversion codoped NaY1-x-yErxYbyF4 hexagonal NPs.pt_BR
dc.relation.ispartofPhysical review. B, Covering condensed matter and materials physicspt_BR
dc.relation.ispartofabbreviationPhys. rev. Bpt_BR
dc.publisher.cityCollege Park, MDpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAmerican Physical Societypt_BR
dc.date.issued2017pt_BR
dc.date.monthofcirculationOct.pt_BR
dc.language.isoengpt_BR
dc.description.volume96pt_BR
dc.description.issuenumber16pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage7pt_BR
dc.rightsabertopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn2469-9950pt_BR
dc.identifier.eissn2469-9969pt_BR
dc.identifier.doi10.1103/PhysRevB.96.165430pt_BR
dc.identifier.urlhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.165430pt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsorship1COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorship1CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorship1FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumber2011/19924-2pt_BR
dc.description.sponsordocumentnumber2012/04870-7pt_BR
dc.description.sponsordocumentnumber2012/05903-6pt_BR
dc.description.sponsordocumentnumber2015/23882-4pt_BR
dc.date.available2020-07-09T20:47:21Z-
dc.date.accessioned2020-07-09T20:47:21Z-
dc.description.provenanceMade available in DSpace on 2020-07-09T20:47:21Z (GMT). No. of bitstreams: 1 000413166500005.pdf: 1172723 bytes, checksum: 8bbcfa22f7a7fa63aeb8deee5703c3a0 (MD5) Previous issue date: 2017en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/344659-
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.departmentDepartamento de Eletrônica Quânticapt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.identifier.source000413166500005pt_BR
dc.creator.orcid0000-0002-5834-4389pt_BR
dc.creator.orcid0000-0003-0503-3664pt_BR
dc.creator.orcid0000-0002-9443-8374pt_BR
dc.creator.orcid0000-0001-6692-7915pt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid165430pt_BR
dc.description.sponsorNoteThis work was supported and performed under the auspices of the Brazilian agencies CAPES, CNPq, and FAPESP through Grants No. 2011/19924-2, No. 2012/04870-7, No. 2012/05903-6, and No. 2015/23882-4. The SEM data were acquired in the LNNano at the Centro Nacional de Pesquisa em Energia e Materiais (CNPEM) in Campinas-SP, Brazil. D.J.G. acknowledges support from FONCyT (PICT 2012-1069).pt_BR
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