Figure 3
From: Bio-inspired broadband absorbers induced by copper nanostructures on natural leaves

SEM images of copper-coated leaves: (a) (bar: 10 µm), (b) (bar: 1 µm), (c) (bar: 1 µm) magnified images of Phanera pupurea leaf, (d) (bar: 10 µm), (e) (bar: 1 µm), (f) (bar: 1 µm) magnified images of Pistia stratiotes leaf, (g) (bar: 10 µm), (h) (bar: 1 µm), (i) (bar: 1 µm) magnified images of Catharanthus roseus leaf.