Epitaxially grown LiNbO3 thin films by polymeric precursor method

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dc.contributor.authorBouquet, V
dc.contributor.authorBernardi, MIB
dc.contributor.authorZanetti, S. M.
dc.contributor.authorLeite, E. R.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.authorViry, M. G.
dc.contributor.authorPerrin, A.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Rennes 1
dc.date.accessioned2014-05-20T15:19:50Z
dc.date.available2014-05-20T15:19:50Z
dc.date.issued2000-11-01
dc.description.abstractLiNbO3 thin films were grown on (0001) sapphire substrates by a chemical route, using the polymeric precursor method. The overall process consists of preparing a coating solution from the Pechini process, based on metallic citrate polymerization, the precursor films, deposited by dip coating, are then heat treated to eliminate the organic material and to synthesize the phase. In this work, we studied the influence of the heat treatment on the structural and optical properties of single-layered films. Two routes were also investigated to increase the film thickness: increasing the viscosity of the coating solution and/or increasing the number of successively deposited layers. The x-ray diffraction theta -2 theta scans revealed the c-axis orientation of the single- and multilayered films and showed that efficient crystallization can be obtained at temperatures as low as 400 degreesC, the phi-scan diffraction evidenced the epitaxial growth with two in-plane variants, A microstructural study revealed that the films were crack free, homogeneous, and relatively dense. Finally, the investigation of the optical properties (optical transmittance and refractive index) confirmed the good quality of the films. These results indicate that the polymeric precursor method is a promising process to develop lithium niobate waveguides.en
dc.description.affiliationUniv Fed Sao Carlos, LIEC, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, BR-14884970 Araraquara, SP, Brazil
dc.description.affiliationUniv Rennes 1, Chim Solide & Inorgan Mol Lab, CNRS, UMR 6511, F-35042 Rennes, France
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, BR-14884970 Araraquara, SP, Brazil
dc.format.extent2446-2453
dc.identifierhttp://dx.doi.org/10.1557/JMR.2000.0351
dc.identifier.citationJournal of Materials Research. Warrendale: Materials Research Society, v. 15, n. 11, p. 2446-2453, 2000.
dc.identifier.doi10.1557/JMR.2000.0351
dc.identifier.issn0884-2914
dc.identifier.urihttp://hdl.handle.net/11449/31221
dc.identifier.wosWOS:000165275400028
dc.language.isoeng
dc.publisherMaterials Research Society
dc.relation.ispartofJournal of Materials Research
dc.relation.ispartofjcr1.495
dc.relation.ispartofsjr0,610
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEpitaxially grown LiNbO3 thin films by polymeric precursor methoden
dc.typeArtigo
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676#
dcterms.rightsHolderMaterials Research Society
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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