Extended Data Fig. 7: Surface facets of gold rhombic dodecahedra and examples of patchy rhombic dodecahedra.

a–g, HAADF-STEM images of an unmasked gold rhombic dodecahedron (Supplementary Fig. 2d) and corresponding 3D model. b–g, Zoomed-in views of the vertex regions shown by boxes in a. The vertices exhibit {111} and {100} terraces (denoted by yellow lines). h,i, Representative TEM (h) and SEM (i) images of patchy small rhombic dodecahedra (Supplementary Fig. 2c). j,k, SEM images and corresponding schematics of patchy small rhombic dodecahedra viewed along the [111] (j) and [100] (k) directions, respectively. Scale bars, 20 nm (a); 2 nm (b–g); 100 nm (h,i), 20 nm (j,k).