Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27424
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dc.contributor.authorPedrosa, P.-
dc.contributor.authorMachado, D.-
dc.contributor.authorLopes, C.-
dc.contributor.authorAlves, E.-
dc.contributor.authorBarradas, N. P.-
dc.contributor.authorMartin, N.-
dc.contributor.authorMacedo, F.-
dc.contributor.authorFonseca, C.-
dc.contributor.authorVaz, F.-
dc.date.accessioned2014-10-28T17:29:52Z-
dc.date.available2014-10-28T17:29:52Z-
dc.date.issued2013-11-15-
dc.identifier.citationPEDROSA, P. [et. al] - Nanocomposite Ag:TiN thin films for dry biopotential electrodes. "Applied Surface Science". ISSN 0169-4332. Vol. 285 (2013) p. 40-48por
dc.identifier.issn0169-4332-
dc.identifier.urihttp://hdl.handle.net/10316/27424-
dc.description.abstractSilver-added titanium nitride (Ag:TiN) thin films were deposited by DC reactive sputtering with Ag contents ranging from 0 to ∼50 at.% on silicon and glass substrates, aiming at studying their potential application as bio-electrodes. The coatings were characterised regarding their composition, morphology and structure, and their influence on the variation of the electrical resistivity and thermal properties. The sputtered films’ behaviour was consistently divided into three main zones, defined mainly by the amount of Ag incorporated and the corresponding changes in the structural and morphological features, which affected both the electrical and thermal response of the films. With increasing Ag concentration, the coatings evolve from a nitride/compound-like behaviour to a metallic-like one. Resistivity values suffer a strong decrease due to the increase of compactness of the coatings and the formation of highly conductive Ag phases, counterbalancing the grain size decrease effects promoted by the hindered growth of the crystalline TiN phases. In good agreement with the electrical resistivity evolution, a similar trend was found in the effusivity values, reflecting a significant degradation of the heat conduction mechanisms in the films as the silver content was increased.por
dc.language.isoengpor
dc.publisherElsevierpor
dc.rightsopenAccesspor
dc.subjectTiNpor
dc.subjectAg additionpor
dc.subjectBiopotential electrodespor
dc.subjectEEGpor
dc.subjectECGpor
dc.subjectDry electrodespor
dc.subjectRBSpor
dc.subjectXRDpor
dc.subjectElectrical resistivitypor
dc.subjectThermal propertiespor
dc.titleNanocomposite Ag:TiN thin films for dry biopotential electrodespor
dc.typearticlepor
degois.publication.firstPage40por
degois.publication.lastPage48por
degois.publication.titleApplied Surface Sciencepor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0169433213014657por
dc.peerreviewedYespor
dc.identifier.doi10.1016/j.apsusc.2013.07.154-
degois.publication.volume285por
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
Appears in Collections:I&D CEMUC - Artigos em Revistas Internacionais
FCTUC Eng.Mecânica - Artigos em Revistas Internacionais
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