Fabrication of Axial and Radial Heterostructures for Semiconductor Nanowires by Using Selective-Area Metal-Organic Vapor-Phase Epitaxy
Figure 17
SEM images of grown nanowires. (a) SEM images of GaAs nanowires. Inset has image of nanowire from top. (b) SEM image of nanowires after growth of AlGaAs. (c) Top-view SEM image of GaAs/AlGaAs core-shell nanowire after preferential etching [29].
