Void Structures in Regularly Patterned ZnO Nanorods Grown with the Hydrothermal Method
Figure 1
(a) Plan-view SEM image of a patterned template for ZnO NR growth. (b)–(d) 30°tilted SEM images of the growth results on the template with the growth durations of 10, 30, and 180 min, respectively, when the concentration of the growth solution is 0.08 M and the growth temperature is 80°C. (e) Larger-scale tilted SEM image of the same sample illustrating the uniformity of the ZnO NR array. (f) Tilted SEM image of a Ga-doped ZnO NR array sample under the same growth conditions as those in parts (b)–(e) and 0.003 M in Ga-doping concentration.
