Schottky Junction Methane Sensors Using Electrochemically Grown Nanocrystalline-Nanoporous ZnO Thin Films
Figure 3
(a) Response versus temperature curves and (b) response versus voltage curves of the Schottky sensors using different catalytic contacts on ZnO thin films. It is observed that Rh gives maximum response. For Pt contact the maximum response was obtained at 240°C while for Pd-Ag and Rh contacts the maximum response was obtained at 210°C. For all three types of contacts the maximum response was obtained at 0.4 V bias.
