4. Conclusions
Single crystalline, ZnO nanorods are synthesized by microwave assisted hydrothermal method in short reaction time.
These ZnO nanorods are applied for the sensing of three reducing gases namely CO, ethanol and acetaldehyde.
These ZnO nanorod gas sensors showed high response for these gases and their response increased with increasing gas concentration as well as testing temperature.
For low concentration of gas response for ethanol was better than the CO and acetaldehyde gas at low testing temperature.