Figure 3
From: Photodetecting properties of single CuO–ZnO core–shell nanowires with p–n radial heterojunction
FESEM images at different magnifications of: (a, b) CuO nanowire arrays, (c, d) CuO–ZnO_1 core–shell nanowire arrays and (e, f) CuO–ZnO_2 core–shell nanowire arrays. Insets: FESEM images of a single (b) CuO nanowire, (d) CuO–ZnO_1 core–shell nanowire and (f) CuO–ZnO_2 core–shell nanowire.
