fig5
Figure 5. (A) Schematic illustration of the synthesis of distinct Au-Cu Janus heterostructures. (B-E) STEM images of different Au-Cu Janus heterostructures: (B) Au-CuI, (C) Au-CuII, (D) Au-CuIII, and (E) Au-CuIV[93]. (F) Structural models of Ag-Cu Janus heterostructures with different ratios of the Cu domain, (G) TEM image, and (H) XRD pattern of Ag1-Cu1.1 NDs[94].
