Figure 6From: Growth of arrays of oriented epitaxial platinum nanoparticles with controlled size and shape by natural colloidal lithographyθ -2 θ scans. θ-2θ scans of Pt (004) for (a) 150-nm and (b) 450-nm samples showing that Pt (004) is parallel to the substrate's normal reflection. Insets show SEM images of the platinum particles after annealing (the hexagonal grids are guides to the eyes).Back to article page