Fig. 3From: Hierarchical Nanoflowers on Nanograss Structure for a Non-wettable Surface and a SERS SubstrateCharacterization of CuO nanostructures. a XRD analysis of as-grown CuO nanostructures as a function of oxidation time and a CuO surface after silver layer formation. b A HRTEM image of a CuO nanograssBack to article page