Fig. 6From: Hierarchical Nanoflowers on Nanograss Structure for a Non-wettable Surface and a SERS SubstrateRaman spectroscopy of 4-Mpy/Ag/CuO nanostructures with various thicknesses of Ag layers deposited on a CuO nanograss and b CuO nanoflower. c Comparison of Raman spectroscopy data between nanograss and nanoflower coated with 80-nm-thick Ag layerBack to article page