A new processing method of CaZn2(OH)(6)center dot 2H(2)O powders: Photoluminescence and growth mechanism

dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T15:31:08Z
dc.date.accessioned2022-10-05T17:03:07Z
dc.date.available2014-05-20T15:31:08Z
dc.date.available2022-10-05T17:03:07Z
dc.date.created2014-05-20T15:31:08Z
dc.date.issued2009-12-01
dc.identifierSolid State Sciences. Amsterdam: Elsevier B.V., v. 11, n. 12, p. 2173-2179, 2009.
dc.identifier1293-2558
dc.identifierhttp://hdl.handle.net/11449/40354
dc.identifier10.1016/j.solidstatesciences.2009.09.002
dc.identifierWOS:000273067400025
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3911349
dc.description.abstractIn this communication, we report on the formation of calcium hexahydroxodizincate dehydrate, CaZn2(OH)(6)center dot 2H(2)O (CZO) powders under microwave-hydrothermal (MH) conditions. These powders were analyzed by X-ray diffraction (XRD), Field-emission gum scanning electron microscopy (FEG-SEM), ultraviolet-visible (UV-vis) absorption spectroscopy and photoluminescence (PL) measurements. XRD patterns confirmed that the pure CZO phase was obtained after MH processing performed at 130 degrees C for 2 h. FEG-SEM micrographs indicated that the morphological modifications as well as the growth of CZO microparticles are governed by Ostwald-ripening and coalescence mechanisms. UV-vis spectra showed that this material have an indirect optical band gap. The pure CZO powders exhibited an yellow PL emission when excited by 350 nm wavelength at room temperature. (C) 2009 Elsevier Masson SAS. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationSolid State Sciences
dc.relation1.861
dc.relation0,574
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCaZn2(OH)(6)center dot 2H(2)O
dc.subjectLozenge
dc.subjectRietveld refinement
dc.subjectCrystal growth
dc.subjectPhotoluminescence
dc.titleA new processing method of CaZn2(OH)(6)center dot 2H(2)O powders: Photoluminescence and growth mechanism
dc.typeArtigo


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