Figure 8

(a), (b) FESEM images of the two types nanowire and the surface treated by HF (Figure.8b insert), (c) Schematic of formation of GaN nanowire.
(a), (b) FESEM images of the two types nanowire and the surface treated by HF (Figure.8b insert), (c) Schematic of formation of GaN nanowire.