Real-time electrical and morphological characterizations of gas sensing Ti(Pc)(2) devices under working conditions (Articolo in rivista)

Type
Label
  • Real-time electrical and morphological characterizations of gas sensing Ti(Pc)(2) devices under working conditions (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Generosi A., Paci B., Rossi Albertini V., Perfetti P., Paoletti A.M., Pennesi G., Rossi G., Caminiti R. (2008)
    Real-time electrical and morphological characterizations of gas sensing Ti(Pc)(2) devices under working conditions
    in Sensors and actuators. B, Chemical (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Generosi A., Paci B., Rossi Albertini V., Perfetti P., Paoletti A.M., Pennesi G., Rossi G., Caminiti R. (literal)
Pagina inizio
  • 134 (literal)
Pagina fine
  • 138 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 129 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • http://dx.doi.org/10.1016/j.snb.2007.07.133 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ist Struttura Mat, Area Ric Tor Vergata, I-00133 Rome, Italy Ist Struttura Mat, Area Ric Montelibretti, Rome, Italy Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy Sez INFM, I-00185 Rome, Italy (literal)
Titolo
  • Real-time electrical and morphological characterizations of gas sensing Ti(Pc)(2) devices under working conditions (literal)
Abstract
  • The present study investigates the response of NO2 gas sensing devices, based on bis(phthalocyaninato)titanium thin films, by combined electrical and time-resolved energy-dispersive X-ray reflectometry (EDXR) analysis. Samples of various thicknesses were exposed to a NO2 gas flux and their electrical response was recorded, during interaction with the oxidising molecules. At the same time, the changes induced in the film thickness and roughness, produced by the 'breathing like' mechanism, which characterized the diffusion of the gas in the film bulk, were monitored by EDXR. Comparing the two results, the first direct correspondence between the morphological changes and the electrical response of the sensor was found. This also demonstrates that the morphological characteristics of the films are actually related to their sensing behaviour and can therefore be used, as an alternative to the electrical response, to follow the gas-film interaction process. (C) 2007 Elsevier B.V. All rights reserved. (literal)
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