Photoluminescence emission at room temperature in zinc oxide nano-columns

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dc.contributor.authorRocha, L. S. R. [UNESP]
dc.contributor.authorDeus, R. C. [UNESP]
dc.contributor.authorFoschini, C. R. [UNESP]
dc.contributor.authorMoura, F.
dc.contributor.authorGarcia, F. Gonzalez
dc.contributor.authorSimoes, A. Z. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Itajubá (UNIFEI)
dc.date.accessioned2014-12-03T13:09:14Z
dc.date.available2014-12-03T13:09:14Z
dc.date.issued2014-02-01
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.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.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.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.doi10.1016/j.materresbull.2013.09.049
dc.identifier.issn0025-5408
dc.identifier.lattes3573363486614904
dc.identifier.lattes1922357184842767
dc.identifier.orcid0000-0003-1300-4978
dc.identifier.urihttp://hdl.handle.net/11449/112098
dc.identifier.wosWOS:000331920500003
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Research Bulletin
dc.relation.ispartofjcr2.873
dc.relation.ispartofsjr0,746
dc.rights.accessRightsAcesso restrito
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.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes3573363486614904
unesp.author.lattes3573363486614904[6]
unesp.author.lattes1922357184842767[3]
unesp.author.orcid0000-0003-1300-4978[3]
unesp.author.orcid0000-0003-2535-2187[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Baurupt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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