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The Fe2O3 and CoFe2O4 nanoparticle-based Langmuir-Blodgett lms for sensingof nitrogen dioxide (NO2) and acetone vapours have been explored. Both the sensitivity of thechemiresistors and dynamic properties, such as the response/recovery time, have been probed independence of the number of nanoparticle monolayers and working temperatures. The responseof 23 at the NO2 concentration of 1 ppm has been monitored suggesting the pertinent sensitivityin the deep sub-ppm range, ie approaching the canine detection limit, and likewise implyingthe supposable detection of nitrate-based explosives.
Trans Tech Publications Ltd
Publication date: 
1 Jan 2014

Jan Ivanco, Stefan Luby, Roberto Rella, Maria G Manera, Monika Benkovicova, Matej Jergel, Peter Siffalovic, Karol Vegso, Yurij Halahovets, Eva Majkova

Biblio References: 
Volume: 605 Pages: 318-321
Key Engineering Materials