Microbalance chemical sensor based on thin-film bulk acoustic wave resonators (Articolo in rivista)

Type
Label
  • Microbalance chemical sensor based on thin-film bulk acoustic wave resonators (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2112187 (literal)
Alternative label
  • M. Benetti 1; D. Cannatà 1; F. Di Pietrantonio 1; V. Foglietti 2; E. Verona 1; (2005)
    Microbalance chemical sensor based on thin-film bulk acoustic wave resonators
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Benetti 1; D. Cannatà 1; F. Di Pietrantonio 1; V. Foglietti 2; E. Verona 1; (literal)
Pagina inizio
  • 173504 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 87 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Istituto di Acustica \"O.M. Corbino\" Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100 I-00133 , Roma; 2 Istituto di Fotonica e Nanotecnologie Consiglio Nazionale delle Ricerche, Via Cineto Romano 42 I-00156 Roma. (literal)
Titolo
  • Microbalance chemical sensor based on thin-film bulk acoustic wave resonators (literal)
Abstract
  • An electroacoustic chemical sensor based on thin-film bulk acoustic wave resonators ?TFBAR? is presented. It operates on the same principle of the well-known quartz crystal micro-balance, at an operation frequency extended up to several GHz. The larger output signal, associated to the higher operation frequency, is a condition to improve the device sensitivity. TFBARs have been implemented on ?001? Si wafers, using Si3N4 /AlN membranes, obtained by anisotropic etching of Si. Time response and calibration curves have been tested on TFBAR sensors exploiting two different chemically interactive membranes: Pd and Co-tetra-phenyl-porphyrin, both deposited in the form of thin-films by thermal evaporation. Measurements performed upon exposure to H2, CO, and ethanol have shown the ability of the device to detect low concentrations of the analyte with a fast and repeatable response (literal)
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