Abstract
Present paper reports the growth mechanism of hexagonal ZnO nanocrystals (NCs) with their NO2 gas and humidity sensing. Thin film of ZnO was prepared using the zinc acetate with ethanol as precursors. Prepared thin film was annealed at 450°C for 2h which led to necking and coarsening of nanocrystals. Hexagonal crystalline nature of film was revealed by the XRD with the crystallite size ~71nm and AFM confirmed this fact. Film was exposed to NO2 and moisture separately and variations in resistance with the increasing %RH were recorded. The film gave highest sensing response for 20ppm NO2 as 150 and for moisture, the highest sensitivity was found as 10.91MΩ/%RH.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
