Sensitivity of a platinum-polyyne-based sensor to low relative humidity and chemical vapors

被引:57
作者
Caliendo, C
Fratoddi, I
Russo, MV
机构
[1] CNR, Inst Acoust, I-00133 Rome, Italy
[2] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy
关键词
D O I
10.1063/1.1489095
中图分类号
O59 [应用物理学];
学科分类号
摘要
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.
引用
收藏
页码:4849 / 4851
页数:3
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