Figure 2From: A novel gas ionization sensor using Pd nanoparticle-capped ZnO Current-voltage (I-V) curves of the senors. (a) I-V curves of the gas sensors using bare ZnO and Pd/ZnO nanorods and (b) I-V curves of Pd/ZnO nanorod-based sensors for Ar, He/CH4, Air, and N2, showing distinct breakdown voltage. (c) The stability tests of Pd/ZnO nanorod-based sensors for air and Ar.Back to article page