Luminescent properties and lattice defects correlation on zinc oxide

dc.contributor.authorLima, SAM
dc.contributor.authorSigoli, F. A.
dc.contributor.authorJafelicci, M.
dc.contributor.authorDavolos, Marian Rosaly [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:19:56Z
dc.date.available2014-05-20T15:19:56Z
dc.date.issued2001-11-01
dc.description.abstractThe ZnO luminescent properties are strongly influenced by the preparation method and they are principally related to electronic and crystalline structures. This work reports about the correlation among luminescence properties of ZnO, obtained from zinc hydroxycarbonate, and crystalline lattice defects, microstrain, as function of thermal treatment. The crystallite size increase and the qualitative microstrain, obtained by Williamson-Hall plots, decrease as function of temperature. The evolution of electronic defects is analyzed by luminescence spectroscopy based on energy of the electronic transitions. From excitation spectrum, it is verified two bands around 377 nm and 405 nm attributed to the transitions between valence-conduction bands and valence band to interstitial zinc level, respectively. The emission spectra of sample treated at 600 degreesC shows large band at 670 nm. However, the green emission around 530 nm is observed for samples treated at 900 degreesC. The intensities of excitation and emission bands are associated with the increase of the electronic defects that depend on the strain lattice decrease. The lowest strain lattice results on the best green luminescent properties of zinc oxide. (C) 2001 Elsevier B.V. Ltd. All rights reserved.en
dc.description.affiliationUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.format.extent749-754
dc.identifierhttp://dx.doi.org/10.1016/S1466-6049(01)00055-1
dc.identifier.citationInternational Journal of Inorganic Materials. Oxford: Elsevier B.V., v. 3, n. 7, p. 749-754, 2001.
dc.identifier.doi10.1016/S1466-6049(01)00055-1
dc.identifier.issn1466-6049
dc.identifier.lattes4284809342546287
dc.identifier.urihttp://hdl.handle.net/11449/31318
dc.identifier.wosWOS:000172827300025
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofInternational Journal of Inorganic Materials
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectzinc oxidept
dc.subjectluminescencept
dc.subjectstrainpt
dc.titleLuminescent properties and lattice defects correlation on zinc oxideen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes4284809342546287
unesp.author.orcid0000-0001-8326-1465[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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