Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors (Articolo in rivista)

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  • Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.1489095 (literal)
Alternative label
  • Cinzia Caliendo, Ilaria Fratoddi, Maria Vittoria Russo (2002)
    Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors
    in Applied physics letters; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cinzia Caliendo, Ilaria Fratoddi, Maria Vittoria Russo (literal)
Pagina inizio
  • 4849 (literal)
Pagina fine
  • 4851 (literal)
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  • in the present paper the behavior of a Surface Acoustiv Wave sensor is described. A SAW delay line has been implemented on Si substrate covered by a SiO2 and ZnO films grown by reactive sputtering technique; the acoustic path was covered by spinning technique with a humidity sensitive membrane. the SAW phase velocity and propagation loss changes were measured for different humidity values and the sensor calibration curve was deduced. The real and imaginary parts of the complex shear modulus G* of the thin membrane were experimentally estimated from acoustic measurements of insertion loss and velocity developed at 0% RH on different polymer coated substrates (such as lithium niobate and quartz). (literal)
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  • http://dx.doi.org/10.1063/1.1489095 (literal)
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  • 80 (literal)
Rivista
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  • 3 (literal)
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  • 25 (literal)
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  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
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  • Istituto di Acustica O.M.Corbino Facoltà di Chimica, Dip. Chimica La Sapienza Facoltà di Chimica, Dip. Chimica La Sapienza (literal)
Titolo
  • Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors (literal)
Abstract
  • The sensitivity to relative humidity ~RH! variations in the range 0%-90% of a platinum polyyne, namely poly-@1,4-dihexadecyloxy-2,5-diethynylbenzene-bis~triphenylphosphine! platinum~II!# ~Pt-P-HDOB! membrane was investigated by means of a surface acoustic wave ~SAW! based sensor. A thin film of polymeric membrane was spin deposited on the free surface of the device and the resulting acoustic velocity and attenuation perturbations allowed the acoustic characterization of the membrane by means of the perturbation theory. The SAW sensor was able to reveal even very low ~,10% RH! humidity conditions at room temperature, with high reproducibility, repeatability and stability. (literal)
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