Figure 3From: The fabrication of large-scale sub-10-nm core-shell silicon nanowire arraysSEM images describing the formation of the porous Ag film template. (a) SEM image of the sample after RIE treatment of 55 s. (b) SEM image of the sample after 5-min Ag deposition. (c) The sample after removal of the PS spheres by ultrasonication.Back to article page