Figure 1
From: Controllable synthesis of branched ZnO/Si nanowire arrays with hierarchical structure
Steps to synthesize branched ZnO/Si nanowire arrays (left panels) and corresponding SEM images (right panels). The Si substrate (a), the growth of Si nanowire arrays by chemical etching (b), the deposition of ZnO thin film by magnetron sputtering as a seed layer on the Si nanowires surface (c), the growth of ZnO nanowire arrays by hydrothermal method (d), SEM images of the bare Si nanowire arrays (e), the Si nanowire arrays decorated with ZnO nanoparticles (f), and the branched ZnO/Si nanowire arrays with hierarchical structure (g).