Effects of Annealing Environments on the Solution-Grown, Aligned Aluminium-Doped Zinc Oxide Nanorod-Array-Based Ultraviolet Photoconductive Sensor

Figure 2

Cross-sectional images of (a) as-grown, (b) oxygen-annealed, (c) air-annealed, and (d) vacuum-annealed Al-doped ZnO nanorod arrays.

(a)

(b)

(c)

(d)