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dc.contributor.authorRodríguez Méndez, María Luz 
dc.contributor.authorApetrei, Constantin
dc.contributor.authorNieto, M.
dc.contributor.authorHernandez, V.
dc.contributor.authorLópez Navarrete, J.T.
dc.contributor.authorEffenberger, F.
dc.contributor.authorSaja Sáez, José Antonio de
dc.date.accessioned2018-07-17T09:55:35Z
dc.date.issued2009
dc.identifier.citationSensors and Actuators B vol. 141 p. 625-633es
dc.identifier.issn0925-4005es
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/30789
dc.descriptionProducción Científicaes
dc.description.abstractHighly reproducible optic and electrochemical sensors have been developed using organised films from a polar bithiophene derivative, the 5-(dimethylamino)-5′-nitro-2,2′-bithiophene (Me2N–T2–NO2). The strength of the molecular dipole moment of this push–pull end-capped bithiophene has permitted to obtain highly ordered, homogeneous and reproducible films by using both the Langmuir–Blodgett and the casting techniques. The organisation of the molecules in LB films and cast films has been established by means of UV–vis, infrared and Raman spectroscopy and by AFM. Me2N–T2–NO2 thin films possess appealing optical and electrochemical sensing capabilities. UV–vis spectra can be modified in the presence of a variety of volatile organic compounds and the sensitivity is related to the polarity of the gas analysed. Films can also be used as electrochemical sensors because the characteristics of the current/potential curves are sensitive to the nature of the electrolytic solution. The spectral changes accompanying the applied voltage could be used to produce ionochromic sensor electrodes. The structure of the films has an important impact in the sensing properties of the films and in their stability. The optical and electrochemical sensing properties of Langmuir–Blodgett films are more reproducible than those observed in cast films. This makes films prepared using the LB technique to be preferred as sensing devices. However the casting technique provides a fast method to obtain cheap and highly ordered sensors.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleSensing Properties of organised films based on a bithiophene derivativees
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doihttps://doi.org/10.1016/j.snb.2009.06.018es
dc.peerreviewedSIes
dc.description.embargo2022-07-6es
dc.description.lift2022-07-06
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


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