Greenhouse Gas Sensing Properties of ZnO Nanorods

We report on the sensing properties of electrochemically deposited zinc oxide (ZnO) nanorod films. The interaction between methane and the ZnO nanorods causes a drop in the resistivity depending on the methane concentration. We will present our first results for ZnO nanorods grown on different substrates and operated between 150 $^{\circ}$C and 300 $^{\circ}$C. Our first measurement indicate a sensitivity for methan of better than 0.1{\%}. The ZnO nanosensor characterization was carried out by using bulk X-ray diffraction (XRD) and by scanning electron microscopy (SEM).