Abstract
Comb-like ZnO nanostructures are prepared by chemical vapor deposition in a quartz vial and characterized by a scanning electron microscope. The comb-like ZnO structures are several tens of micrometers. The lengths of the branches (nanowires) gradually decrease along the growth direction of the comb-like ZnO structures. The branches have uniform diameters and are evenly distributed on the belt-stem. Electrical measurements indicate that the comb-like ZnO is intrinsic n-type semiconductor. Moreover, the nanostructures have good sensing properties. It is found that an individual ZnO comb exhibits fast and large response to ppm-level CO gas even at room temperature. The sensing mechanism is also discussed briefly. These results demonstrate that comb-like ZnO nanostructures have potential application in gas sensors without an external heater.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.