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Reference type: Journal
Authors: Pestov D, Guney-Altay O, Levit N, Tepper G
Article Title: Improving the stability of surface acoustic wave (SAW) chemical sensor coatings using photopolymerization.
Publication date: 2007
Journal: Sensors and Actuators B: Chemical
Volume: 126
Issue: (2)
Page numbers: 557-561.
DOI: 10.1016/j.snb.2007.04.010
Alternative URL: http://www.sciencedirect.com/science/article/B6THH-4NH7F04-2/2/24fc6682454ee1a4943357d7b6df3259

Abstract: Submicron particles of a diethyl ester of p-phenylenediacrylic acid (EPA) were produced by the technique known as rapid expansion of supercritical solutions (RESS) and were deposited onto surface acoustic wave (SAW) resonators. The EPA particles were polymerized in the solid-state directly on the surface of the SAW devices in order to stabilize the mechanical properties of the sensor coatings. The sensor affinity to particular vapors was enhanced by performing the polymerization step in the presence of organic template vapors. The resulting SAW sensors exhibited high quality factors (Q0) and we have demonstrated the sensor stability for periods up to 3.8 years
Template and target information: 1-butanol
Author keywords: gas sensor, surface acoustic waves, photopolymerization, Rapid expansion of supercritical fluids, Coating stability


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