Effect of Sensitizers on H2S Sensing Properties of ZnO Nanowires

sputtering to generate a 2X7 sensor array. After fabrication, the sensor array device has been investigated for its gas sensing properties. The optimal temperature for HzS sensing has been observed to be 300°C. The maximum sensor response of S=52 was obtained for AUS.7at% modified ZnO NWs with response and recovery times of 22 sec and 52 min, respectively. Concentration profile at 300°C revealed the same pattern with change in amplitude by changing HzS concentration. The sensor array was able to detect HzS both qualitatively and quantitatively based on the graphical pattern and position of the pattern, respectively.