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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleElectrochromism In Moox Films Characterized By X-ray Electron Spectroscopypt_BR
dc.contributor.authorSouza Cruz T.G.pt_BR
dc.contributor.authorGorenstein A.pt_BR
dc.contributor.authorLanders R.pt_BR
dc.contributor.authorKleiman G.G.pt_BR
dc.contributor.authorDeCastro S.C.pt_BR
unicamp.authorSouza Cruz, T.G., Instituto de Física Gleb Wataghin, UNICAMP, Campinas 13081-970 SP, Brazilpt_BR
unicamp.authorGorenstein, A., Instituto de Física Gleb Wataghin, UNICAMP, Campinas 13081-970 SP, Brazilpt_BR
unicamp.authorLanders, R., Instituto de Física Gleb Wataghin, UNICAMP, Campinas 13081-970 SP, Brazilpt_BR
unicamp.authorKleiman, G.G., Instituto de Física Gleb Wataghin, UNICAMP, Campinas 13081-970 SP, Brazilpt_BR
unicamp.authorDeCastro, S.C., Instituto de Física Gleb Wataghin, UNICAMP, Campinas 13081-970 SP, Brazilpt_BR
dc.description.abstractThe ability of molybdenum oxide thin films to reversibly exchange lithium ions (with an electrolyte) and electrons (with an external circuit) has been explored in optical electrochromic devices. The as-grown films are either transparent or slightly blue and show a deep blue color upon Li+/e- insertion. The thin film electronic band and crystallographic structure govern the kinetics of insertion reaction and the charge capacity of the material, as well as the optical behavior of the system. In this work, molybdenum oxide thin films were produced by r.f. reactive sputtering of a metallic molybdenum target in an O2-Ar atmosphere. Thin films with distinct compositions, were obtained by varying the oxygen flow (φ) during deposition and maintaining all other deposition parameters constant. Lithium intercalation was promoted by electrochemical means, from an aprotic, Li+-containing electrolyte. The films of distinct compositions were analyzed by X-ray photoelectron spectroscopy in order to investigate the relation between MoO3 reduction and the electrochromic effect reported in the literature [I]. Data obtained on high oxygen flow samples show narrow Mo 3d lines, with binding energies characteristic of the 6+ state. Lowering the oxygen flow results in very broad 3d lines, indicating the presence of Mo6+ , 5+ and 4+. This broadening of the 3d lines is also observed upon Li intercalation in high flow samples both on as-grown films and on films intercalated with Li+/e-. © 1999 Elsevier Science B.V. All rights reserved.en
dc.relation.ispartofJournal of Electron Spectroscopy and Related Phenomenapt_BR
dc.date.issued1999pt_BR
dc.identifier.citationJournal Of Electron Spectroscopy And Related Phenomena. , v. 101-103, n. , p. 397 - 400, 1999.pt_BR
dc.language.isoenpt_BR
dc.description.volume101-103pt_BR
dc.description.firstpage397pt_BR
dc.description.lastpage400pt_BR
dc.rightsfechadopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn3682048pt_BR
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0001509921&partnerID=40&md5=a0cf4b50e704c85d3b5a65d2a68ed9d3pt_BR
dc.date.available2015-06-30T15:20:43Z
dc.date.available2015-11-26T15:27:01Z-
dc.date.accessioned2015-06-30T15:20:43Z
dc.date.accessioned2015-11-26T15:27:01Z-
dc.description.provenanceMade available in DSpace on 2015-06-30T15:20:43Z (GMT). No. of bitstreams: 1 2-s2.0-0001509921.pdf: 124126 bytes, checksum: aa1a80dac9a7e02849a315d3a866a11a (MD5) Previous issue date: 1999en
dc.description.provenanceMade available in DSpace on 2015-11-26T15:27:01Z (GMT). No. of bitstreams: 2 2-s2.0-0001509921.pdf: 124126 bytes, checksum: aa1a80dac9a7e02849a315d3a866a11a (MD5) 2-s2.0-0001509921.pdf.txt: 11657 bytes, checksum: 9091967aeb0df3b3e97bf823d9cadcdc (MD5) Previous issue date: 1999en
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/101030
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/101030-
dc.identifier.idScopus2-s2.0-0001509921pt_BR
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