Photoluminescence emission at room temperature in zinc oxide nano-columns

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de Itajubá (UNIFEI)
dc.creatorRocha, L. S. R. [UNESP]
dc.creatorDeus, R. C. [UNESP]
dc.creatorFoschini, C. R. [UNESP]
dc.creatorMoura, F.
dc.creatorGarcia, F. Gonzalez
dc.creatorSimoes, A. Z. [UNESP]
dc.date2014-12-03T13:09:14Z
dc.date2014-12-03T13:09:14Z
dc.date2014-02-01
dc.date.accessioned2023-09-09T09:53:56Z
dc.date.available2023-09-09T09:53:56Z
dc.identifierhttp://dx.doi.org/10.1016/j.materresbull.2013.09.049
dc.identifierMaterials Research Bulletin. Oxford: Pergamon-elsevier Science Ltd, v. 50, p. 12-17, 2014.
dc.identifier0025-5408
dc.identifierhttp://hdl.handle.net/11449/112098
dc.identifier10.1016/j.materresbull.2013.09.049
dc.identifierWOS:000331920500003
dc.identifier3573363486614904
dc.identifier1922357184842767
dc.identifier0000-0003-1300-4978
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8761735
dc.descriptionHydrothermal 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.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionUniv Estadual Paulista, UNESP, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil
dc.descriptionUniv Fed Itajuba Unifei, BR-3590037 Itabira, MG, Brazil
dc.descriptionUniv Estadual Paulista, UNESP, Inst Quim, Lab Interdisciplinar Ceram LIEC, BR-1480090 Araraquara, SP, Brazil
dc.descriptionUniv Estadual Paulista, UNESP, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil
dc.descriptionUniv Estadual Paulista, UNESP, Inst Quim, Lab Interdisciplinar Ceram LIEC, BR-1480090 Araraquara, SP, Brazil
dc.format12-17
dc.languageeng
dc.publisherElsevier B.V.
dc.relationMaterials Research Bulletin
dc.relation2.873
dc.relation0,746
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectNanostructures
dc.subjectChemical synthesis
dc.subjectElectron microscopy
dc.subjectLuminescence
dc.subjectCrystal structure
dc.titlePhotoluminescence emission at room temperature in zinc oxide nano-columns
dc.typeArtigo


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