Extended Data Fig. 5: UV-Vis spectra and HAADF-STEM images of octahedra. | Nature

Extended Data Fig. 5: UV-Vis spectra and HAADF-STEM images of octahedra.

From: Patchy nanoparticles by atomic stencilling

Extended Data Fig. 5: UV-Vis spectra and HAADF-STEM images of octahedra.The alternative text for this image may have been generated using AI.

a, Normalized UV-Vis spectra of the pristine (black), iodide-masked at [I−] of 0.25 µM (red) and patchy (blue) octahedra synthesized at [I−] of 0.25 µM and [2-NAT] of 17.0 µM. b, Normalized UV-Vis spectra of iodide-masked octahedra at varying [I−] from 0.17 to 30.0 µM. No localized surface plasmon resonance shift is observed after iodide masking, confirming that the core gold NPs maintain their ensemble size and shape. c, HAADF-STEM images of an unmasked gold octahedron and the corresponding 3D model. d,e, Zoomed-in HAADF-STEM images of the vertex regions shown by boxes in c. The vertices exhibit {100} terraces as denoted by yellow lines. Scale bars, 20 nm (c); 2 nm (d,e).

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