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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/112098
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dc.contributor.authorRocha, L. S. R.-
dc.contributor.authorDeus, R. C.-
dc.contributor.authorFoschini, C. R.-
dc.contributor.authorMoura, F.-
dc.contributor.authorGarcia, F. Gonzalez-
dc.contributor.authorSimoes, A. Z.-
dc.date.accessioned2014-12-03T13:09:14Z-
dc.date.accessioned2016-10-25T20:10:25Z-
dc.date.available2014-12-03T13:09:14Z-
dc.date.available2016-10-25T20:10:25Z-
dc.date.issued2014-02-01-
dc.identifierhttp://dx.doi.org/10.1016/j.materresbull.2013.09.049-
dc.identifier.citationMaterials Research Bulletin. Oxford: Pergamon-elsevier Science Ltd, v. 50, p. 12-17, 2014.-
dc.identifier.issn0025-5408-
dc.identifier.urihttp://hdl.handle.net/11449/112098-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/112098-
dc.description.abstractHydrothermal microwave method (HTMW) was used to synthesize crystalline zinc oxide (ZnO) nano-columns at the temperature of 120 degrees C with a soaking time of 8 min. ZnO nano-columns were characterized by using X-ray analyses (XRD), infrared spectroscopy (FT-IR), thermogravimetric analyses (TG-DTA), field emission gun and transmission electron microscopy (FEG-SEM and TEM) and photoluminescence properties (PL). XRD results indicated that the ZnO nano-columns are free of any impurity phase and crystallize in the hexagonal structure. Typical FT-IR spectra for ZnO nano-columns presented well defined bands, indicating a substantial short-range order in the system. PL spectra consist of a broad band at 590 nm and narrow band at 480 nm corresponding to a near-band edge emission related to the recombination of excitons and level emission related to structural defects. These results show that the HTMW synthesis route is rapid, cost effective, and could be used as an alternative to obtain ZnO nano-columns in the temperature of 120 degrees C for 8 min. (C) 2013 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.format.extent12-17-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectNanostructuresen
dc.subjectChemical synthesisen
dc.subjectElectron microscopyen
dc.subjectLuminescenceen
dc.subjectCrystal structureen
dc.titlePhotoluminescence emission at room temperature in zinc oxide nano-columnsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de Itajubá (UNIFEI)-
dc.description.affiliationUniv Estadual Paulista, UNESP, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil-
dc.description.affiliationUniv Fed Itajuba Unifei, BR-3590037 Itabira, MG, Brazil-
dc.description.affiliationUniv Estadual Paulista, UNESP, Inst Quim, Lab Interdisciplinar Ceram LIEC, BR-1480090 Araraquara, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Inst Quim, Lab Interdisciplinar Ceram LIEC, BR-1480090 Araraquara, SP, Brazil-
dc.identifier.doi10.1016/j.materresbull.2013.09.049-
dc.identifier.wosWOS:000331920500003-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofMaterials Research Bulletin-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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