Fig. 1From: ZnO Nanoparticles/Reduced Graphene Oxide Bilayer Thin Films for Improved NH3-Sensing Performances at Room TemperatureSchematic diagram shows that ZnO nanoparticles colloid and different amount GO solutions were sprayed on IDEs in sequence, and then ZnO/GO bilayer films were further restored to ZnO/rGO by thermal reduction processBack to article page