Fig. 1From: Hierarchical Nanoflowers on Nanograss Structure for a Non-wettable Surface and a SERS SubstrateCuO nanoflowers on nanograss SEM images of CuO surface covered by a, b CuO nanograss and c, d hierarchical structure of CuO nanoflowers on nanograss. e High-resolution SEM images of CuO nanoflowersBack to article page