Figure 3From: Controllable growth of ZnO nanorod arrays with different densities and their photoelectric propertiesThe SEM image of ZnO dot area and nanorod arrays with growth time 1.5 and 2.0 h. (a) The SEM image of ZnO nanorod arrays with growth time of 1.5 h on 200 × 200 nm seed areas; (b) seed areas are 500 × 500 nm; and (c) seed areas are1 × 1 μm; (d) The SEM image of ZnO nanorod arrays with growth time of 2.0 h on 200 × 200 nm seed areas; (e) 500 × 500 nm seed areas; and (f) 1 × 1 μm seed areas.Back to article page