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. (C) 2002 American Institute of Physics.
Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors / Cinzia, Caliendo; Fratoddi, Ilaria; Russo, Maria Vittoria. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - ELETTRONICO. - 80:25(2002), pp. 4849-4851. [10.1063/1.1489095]
Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors
FRATODDI, Ilaria;RUSSO, Maria Vittoria
2002
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. (C) 2002 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
