Growth of Vertically Aligned ZnO Nanowire Arrays Using Bilayered Metal Catalysts

Figure 4

High-resolution SEM images of Ni/Au-catalyzed (a) and Cu/Au-catalyzed (b) ZnO single NW. EDX analysis patterns (c and d) of the alloy tip as shown in the red rectangle areas of (a) and (b). Composites analysis reports of tip alloy (e and f).