  This study presents Shear Horizontal Surface Acoustic Wave (SH-SAW) sensor
based on ink-jet printed poly (3,4-ethylenedioxythiophene) polystyrene
sulfonate -- multi wall carbon nanotubes (PEDOT:PSS-MWCNTs) and MWNTs-based
inks as sensitive gas material. Experiments show the validation of fabrication
process of acoustic platform and ink-jet printed sensitive layers. The
characterization of two devices under different concentrations of ethanol vapor
shows promising results in terms of reproducibility of the measurements. A
sensitivity of 12Hz/ppm was recorded with the sensor based on ink-jet printed
600nm thickness sensitive layer.
