https://doi.org/10.1140/epjst/e2008-00523-4
Interactions of the Polyaniline and Nafion bilayer sensor structure with ammonia in a dry and wet air atmosphere *
Institute of Physics, Silesian University of Technology, 44-100 Gliwice, Poland
Presented here are the preliminary results concerning an
interactions of a novel bilayer sensor structure of polyaniline and Nafion
as an ammonia gas sensors in a Surface Acoustic Wave and electric planar
systems. The investigations were performed with a 50 and 100 ppm
concentrations of the ammonia (NH3) in a synthetic dry (relative
humidity RH∼4–5%) and wet air (RH∼50–54%) atmosphere. The
prototype polyaniline and nafion bilayer structure has been manufactured by
two deposition technologies: 72 nm of PANI by PVD technology and Nafion film
( nm) by spin coating technology and specific process of annealing.
A good interactions with ammonia for the bilayer structure (PANI film with
Nafion) has been observed especially at higher relative humidity of the
atmosphere.
© EDP Sciences, Springer-Verlag, 2008