Growth, structural and optical characterizations of LiLa(1-x)Eux(WO4)(2) single-crystalline fibers by the micro-pulling-down method
| dc.contributor.author | Moraes, Jair Ricardo de | |
| dc.contributor.author | Baldochi, Sonia Licia | |
| dc.contributor.author | Leano Soares, Leonardo dos Reis | |
| dc.contributor.author | Mazzocchi, Vera Lucia | |
| dc.contributor.author | Ramos Parente, Carlos Benedicto | |
| dc.contributor.author | Courrol, Lilia Coronato [UNIFESP] | |
| dc.contributor.institution | IPEN CNEN SP | |
| dc.contributor.institution | Universidade Federal de São Paulo (UNIFESP) | |
| dc.date.accessioned | 2016-01-24T14:26:56Z | |
| dc.date.available | 2016-01-24T14:26:56Z | |
| dc.date.issued | 2012-03-01 | |
| dc.description.abstract | Transparent and uniform LiLa(1-x)Eux(WO4)(2) single-crystalline fibers where x = 0.005, 0.01, 0.03, 0.05, 0.07, 0.1, 0.15, 0.2, 0.25 and 1.0, with an average of 20-40 mm length were obtained by the micro-pulling-down method aiming structural and optical characterization. the optimum pulling rate was found to depend on the difference between alkali and rare earth ionic radii. Rietveld analysis from X-ray diffraction data and excitation spectroscopy at room temperature were applied to investigate the lattice changes due to the Eu3+ incorporation in the host. LiLa(1-x)Eux(WO4)(2) crystal fibers present red emission due to the electric dipole D-5(0) -> F-7(2) transition under 395 nm excitation showing a concentration quenching around 20 mol% of doping. the excitation spectra of the F-7(0) -> D-5(0) transition show small changes in the Eu3+ surroundings as function of dopant concentration. (C) 2011 Elsevier B.V. All rights reserved. | en |
| dc.description.affiliation | IPEN CNEN SP, Inst Pesquisas Energet & Nucl, BR-05508000 São Paulo, Brazil | |
| dc.description.affiliation | Universidade Federal de São Paulo, UNIFESP, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil | |
| dc.description.affiliationUnifesp | Universidade Federal de São Paulo, UNIFESP, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, Brazil | |
| dc.description.source | Web of Science | |
| 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.description.sponsorshipID | FAPESP: 96/09604-9 | |
| dc.description.sponsorshipID | FAPESP: 2006/58686-1 | |
| dc.description.sponsorshipID | FAPESP: 2008/10721-9 | |
| dc.description.sponsorshipID | CNPq: 573916/2008-0 | |
| dc.format.extent | 744-749 | |
| dc.identifier | http://dx.doi.org/10.1016/j.materresbull.2011.12.007 | |
| dc.identifier.citation | Materials Research Bulletin. Oxford: Pergamon-Elsevier B.V., v. 47, n. 3, p. 744-749, 2012. | |
| dc.identifier.doi | 10.1016/j.materresbull.2011.12.007 | |
| dc.identifier.issn | 0025-5408 | |
| dc.identifier.uri | http://repositorio.unifesp.br/handle/11600/34683 | |
| dc.identifier.wos | WOS:000301994100038 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier B.V. | |
| dc.relation.ispartof | Materials Research Bulletin | |
| dc.rights | info:eu-repo/semantics/restrictedAccess | |
| dc.rights.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
| dc.subject | Oxides | en |
| dc.subject | Crystal growth | en |
| dc.subject | Crystal structure | en |
| dc.subject | Luminescence | en |
| dc.subject | Optical properties | en |
| dc.title | Growth, structural and optical characterizations of LiLa(1-x)Eux(WO4)(2) single-crystalline fibers by the micro-pulling-down method | en |
| dc.type | info:eu-repo/semantics/article |