Ethanol sensor based on 1D and 2D ZnO nanostructures

Abstract

1D and 2D ZnO nanostructures have been synthesized, characterized and applied as ethanol gas sensors. The XRD results revealed that 1D nanorods have been grown vertically along c-direction due to strong (002) peak. The FE-SEM investigation has performed the formation of nanorods and nanoporous structures. The dependency of alcohol sensing performance on the morphology was investigated and discussed. In addition, a possible mechanism for sensing alcohol involving adsorption and desorption of the species on the surface of the sensor is also proposed.