Figure 2From: Structural and photoluminescence studies on catalytic growth of silicon/zinc oxide heterostructure nanowiresMorphology study of the ZnO nanostructures grown on In/Si NWs. FESEM images of ZnO nanostructures formed on In/Si NWs at different growth times of (a) 0.5, (b), (c) 1.5, and (d) 2 h. Insets in (b) and (d) are the cross-sectional images of the respective figures (scale bar = 1 μm).Back to article page