AN AMMONIA GAS SENSOR BUILT WITH ZNO NANORODS: CHARACTERIZATION

Abstract

Drop casting was used to create nano-rod Zinc oxide (ZnO). The next step was employing ZnO nanorod to create thin films using the Drop casting method on a glass substrate. These films were dried and burned for two hours in an environment of air at 400oC. Using the SEM, EDAX, and XRD techniques, respectively, the morphological, compositional, and structural characteristics of the ZnO nanorod were examined. Nanorod ZnO film samples' chemical composition varies with firing temperature and exhibits non-stoichiometric behaviors. An XRD analysis showed that hexagonal ZnO sheets with a hexagonal wurtzite structure had formed. I investigated the ZnO flim coatings on nanorods NH3 sensing capabilities at a temperature of 50 °C.