Experimental evidence of a two step reversible absorption/desorption process in ruthenium phthalocyanine gas sensing films by in situ energy dispersive x-ray reflectometry (Articolo in rivista)

Type
Label
  • Experimental evidence of a two step reversible absorption/desorption process in ruthenium phthalocyanine gas sensing films by in situ energy dispersive x-ray reflectometry (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.1874311 (literal)
Alternative label
  • Generosi A. (1); Paci B. (1); Rossi Albertini V. (1); Perfetti P. (1); Pennesi G. (2); Paoletti A.M. (2); Rossi G. (2); Capobianchi A. (2); Caminiti R. (3) (2005)
    Experimental evidence of a two step reversible absorption/desorption process in ruthenium phthalocyanine gas sensing films by in situ energy dispersive x-ray reflectometry
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Generosi A. (1); Paci B. (1); Rossi Albertini V. (1); Perfetti P. (1); Pennesi G. (2); Paoletti A.M. (2); Rossi G. (2); Capobianchi A. (2); Caminiti R. (3) (literal)
Pagina inizio
  • 114106 (literal)
Pagina fine
  • 114108 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Istituto di Struttura della Materia-Area di Ricerca di Tor Vergata, Roma, Italy; (2) Istituto di Struttura della Materia-Area di Ricerca di Montelibretti, Monterotondo Stazione, Roma, Italy; (3) Dipartimento di Chimica, Università \"La Sapienza\" di Roma e sezione INFM, Roma, Italy (literal)
Titolo
  • Experimental evidence of a two step reversible absorption/desorption process in ruthenium phthalocyanine gas sensing films by in situ energy dispersive x-ray reflectometry (literal)
Abstract
  • An in situ energy dispersive x-ray reflectivity technique was used to study the morphological changes of gas sensing thin films of ruthenium phtalocyanine (RuPc)2 induced by gas absorption/desorption processes. The time-resolved collection of reflectivity spectra during the exposure of each film to a gas flux of nitrogen oxides provided the evolution of the morphological parameters (thickness and roughness). The gas absorption process develops in two stages: The first induces morphological changes characteristic of a surface (adsorption) process, while the second is dominated by a bulk effect. This two-step behavior is also observed in the desorption process: When the thermal treatment is performed at 130 °C, the gas is released from the bulk only. Conversely, at higher temperatures, the gas is fully released, i.e., also from the surface, and the initial film thickness is regained. Finally, a further in situ study upon a second absorption treatment was carried out: In this case, only the film bulk diffusion process takes place. (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it