4.4.5 Invited: Surface Ionization on Metal Oxide Gas Sensors

A. Ponzoni, D. Zappa, E. Comin, G. Faglia & G. Sberveglieri
In this work we present the development of surface ionization (SI) gas sensors with planar layout based on bundles of nanorods. We exploit a simple method, compatible with planar deposition techniques, to integrate the layer of nanorods into the functional device. The comparison between the same device provided and not provided with the nanorod layer shows that the measured signal arises from nanorods and not from the Pt electrodes. We further show that the adopted...