Synthesis and structural characterization of Eu(III)-doped Zn7Sb2O12
dc.contributor.author | Silva, A. C. S. [UNESP] | |
dc.contributor.author | Souza, G. G. [UNESP] | |
dc.contributor.author | Nobre, Marcos Augusto Lima [UNESP] | |
dc.contributor.author | Pires, A. M. [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T13:23:02Z | |
dc.date.available | 2014-05-20T13:23:02Z | |
dc.date.issued | 2010-08-01 | |
dc.description.abstract | In addition to the lanthanide series elements, Europium is one of the chemical elements of greatest interest for the development of species with oxidation state +3 (III), which leads to interesting electronic transitions. In a general sense, their emission spectrum lines are narrow and sensitive to effects of the ligand field around metallic ions. This property allows the use of Eu(III) as a structural probe. In this work, samples of semiconductor Zn7Sb2O12 and of solid solutions based on isoelectronically Eu(III)-doped Zn7Sb2O12 with stoichiometry Zn7-3xEu2xSb2O12 were prepared. Both Zn7Sb2O12 and Zn7-3xEu2xSb2O12 were synthesized via a chemical route using Pechini's method and characterized by Fourier transform infrared absorption vibrational spectroscopy (FTIR) and photoluminescence spectroscopy. In order to perform further spectral analyses, each spectrum was adjusted using a set of Gaussian functions. The FTIR spectrum analysis showed a slight band shift of the vibration mode assigned to the Sb-O bonding ascribed to the [SbO6] octahedron vibration. The theoretical fitting of the luminescence curves showed a broadening of the most intense emission peaks related to the transition Eu(III) D-5(0) -> F-7(2). As a whole, the results suggest that a less symmetric Eu(III) site occupation in inverse spinel structure may occur in sites close to the antimony octahedron, involving, however, non-substitutional site occupation. | en |
dc.description.affiliation | Unesp Univ Estadual Paulista, Fac Ciencias & Tecnol, Depto Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil | |
dc.description.affiliationUnesp | Unesp Univ Estadual Paulista, Fac Ciencias & Tecnol, Depto Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.format.extent | 4216-4223 | |
dc.identifier | http://dx.doi.org/10.1007/s10853-010-4516-2 | |
dc.identifier.citation | Journal of Materials Science. New York: Springer, v. 45, n. 15, p. 4216-4223, 2010. | |
dc.identifier.doi | 10.1007/s10853-010-4516-2 | |
dc.identifier.issn | 0022-2461 | |
dc.identifier.lattes | 5408864375841292 | |
dc.identifier.lattes | 7201928600704530 | |
dc.identifier.orcid | 0000-0003-4843-3975 | |
dc.identifier.uri | http://hdl.handle.net/11449/6877 | |
dc.identifier.wos | WOS:000278580100036 | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartof | Journal of Materials Science | |
dc.relation.ispartofjcr | 2.993 | |
dc.relation.ispartofsjr | 0,807 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.title | Synthesis and structural characterization of Eu(III)-doped Zn7Sb2O12 | en |
dc.type | Artigo | |
dcterms.license | http://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0 | |
dcterms.rightsHolder | Springer | |
unesp.author.lattes | 5408864375841292[4] | |
unesp.author.lattes | 7201928600704530 | |
unesp.author.orcid | 0000-0003-4843-3975[3] | |
unesp.author.orcid | 0000-0001-9607-0510[4] | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudente | pt |
unesp.department | Física, Química e Biologia - FCT | pt |
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