Extended Data Fig. 3: STEM-EDX characterization of iodide-masked cuboctahedra.

HAADF-STEM images and EDX maps of Au and I of iodide-masked cuboctahedra, represented in yellow and purple, respectively. Scale bars, 20 nm.

HAADF-STEM images and EDX maps of Au and I of iodide-masked cuboctahedra, represented in yellow and purple, respectively. Scale bars, 20 nm.