Particle size tailoring and luminescence of europium(III)-doped gadolinium oxide obtained by the modified homogeneous precipitation method: Dielectric constant and counter anion effects

dc.creatorGaspar, RDL
dc.creatorMazali, IO
dc.creatorSigoli, FA
dc.date2010
dc.dateSEP 5
dc.date2014-07-30T14:30:47Z
dc.date2015-11-26T17:50:41Z
dc.date2014-07-30T14:30:47Z
dc.date2015-11-26T17:50:41Z
dc.date.accessioned2018-03-29T00:33:56Z
dc.date.available2018-03-29T00:33:56Z
dc.identifierColloids And Surfaces A-physicochemical And Engineering Aspects. Elsevier Science Bv, v. 367, n. 41699, n. 155, n. 160, 2010.
dc.identifier0927-7757
dc.identifierWOS:000281575200024
dc.identifier10.1016/j.colsurfa.2010.07.003
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59106
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59106
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289753
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis work reports on controlling the particle size distribution of europium(III)-doped gadolinium oxide samples prepared through a topochemical reaction carried out by thermal treatment of europium(III)-doped gadolinium hydroxycarbonate. Hydroxycarbonate samples were obtained by a modified homogeneous precipitation method using different solvent mixtures, such as water:ethanol, water:ethylene glycol, water:tert-butanol, and different counter ions such as nitrate and chloride. The luminescent properties of the oxide samples, are characteristics of europium(III) ions, with the hypersensitive transition ((5)D(0) --> (7)F(2)) being the most intense emission peak and the emission lifetime values are typical for this system. The spherical particle size distribution of europium(III)-doped gadolinium oxide can be tailored by selecting the counter anion types, the chemical nature of the alcohol and the dielectric constant of the reaction media. The appropriate control of these parameters allows the preparation of rare-earth doped gadolinium samples having monomodal particle size distributions with mean sizes between 30 and 90 nanometers. (C) 2010 Elsevier B.V. All rights reserved.
dc.description367
dc.description41699
dc.description155
dc.description160
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationColloids And Surfaces A-physicochemical And Engineering Aspects
dc.relationColloid Surf. A-Physicochem. Eng. Asp.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectNanoparticles
dc.subjectGadolinium oxide
dc.subjectDielectric constant
dc.subjectLuminescence
dc.subjectHomogeneous precipitation
dc.subjectField-emission Displays
dc.subjectZinc Hydroxide Carbonate
dc.subjectFlame Spray-pyrolysis
dc.subjectPhosphors
dc.subjectNanoparticles
dc.subjectPhotoluminescence
dc.subjectEuropium
dc.subjectCombustion
dc.subjectFilms
dc.subjectEu2o3
dc.titleParticle size tailoring and luminescence of europium(III)-doped gadolinium oxide obtained by the modified homogeneous precipitation method: Dielectric constant and counter anion effects
dc.typeArtículos de revistas


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