Room Temperature Detection Properties of a Surface Acoustic Wave Gas Sensor with Cu2+/PANI/SnO2 Nanocomposite Thin Film to Nitric Oxide

Chi Yen Shen; Hsiang Min Huang; Shih Han Wang; Yu Chen Chiu

doi:10.4028/www.scientific.net/AMM.312.732

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 312Room Temperature Detection Properties of a Surface...

Room Temperature Detection Properties of a Surface Acoustic Wave Gas Sensor with Cu²⁺/PANI/SnO₂ Nanocomposite Thin Film to Nitric Oxide

Abstract:

A Rayleigh surface acoustic wave (RSAW) resonator with Cu²⁺-PANI-SnO₂nanocomposite thin film is investigated as a gas sensor for detecting the presence of nitric oxide (NO) in air. The sensor developed in this work was sensitive to NO gas at room temperature. It is shown that the sensor had a frequency shift of 0.45 ppm when it was exposed to 12 ppb NO. This RSAW sensor also exhibited repeatability to the presence of NO gas. Especially, the presented sensor showed highly selectivity with NO gas to separate from NO₂ and CO₂ gases.

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Periodical:

Applied Mechanics and Materials (Volume 312)

Pages:

732-735

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.312.732

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Online since:

February 2013

Authors:

Chi Yen Shen, Hsiang Min Huang, Shih Han Wang, Yu Chen Chiu

Keywords:

Nitric Oxide, PANI/SnO₂, Surface Acoustic Wave (SAW)

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