Fabrication of Piezoelectric Thickness-Shear-Mode Acoustic Wave Sensing Device and its Application

Abstract:

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The piezoelectric thickness-shear-mode (TSM) acoustic wave sensing device was fabricated by coating with a calixarene derivative on the surface of gold electrode of quartz crystal, then connecting with a transistor-transistor-logic (TTL) oscillator, a frequency counter and a computer. Among four coating materials, the compound of calixarene I was the most efficient active material for adsorption of carbinol molecule based on a host-guest recognition mechanism. In comparison with gas chromatography (GC) method, the calixarene based TSM device can be used for on-line determination of the poisonous carbinol vapor in the range of 0 ~ 3000 ppm around our living environment with good selectivity, reproducibility and high stability. The detection limit can be evaluated to be 1.41 ppm.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

4261-4264

DOI:

10.4028/www.scientific.net/AMR.97-101.4261

Citation:

Z. Cao et al., "Fabrication of Piezoelectric Thickness-Shear-Mode Acoustic Wave Sensing Device and its Application ", Advanced Materials Research, Vols. 97-101, pp. 4261-4264, 2010

Online since:

March 2010

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Price:

$35.00

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