Facile Synthesis of Cu Nanocrystals with Morphology Evolution from Transitional Truncated Octahedra to Octahedra

Figure 5

UV-visible spectra of Cu nanoparticles with the shape evolution from (a) a transitional truncated octahedron, (b) an edge- and corner-truncated octahedron, (c) an all-corner-truncated octahedron, and (d) an octahedron, which are located at 590 nm, 595 nm, 597 nm, and 620 nm, respectively.