Research Article

Anodic Growth Behavior of TiO2 Nanotube Arrays with Process Parameter Control

Figure 7

FE-SEM image of TiO2 nanotube arrays with different applied voltage ((a) 60 V, (b) 50 V, (c) 40 V, (d) 30 V, (e) 20 V, (f) 10 V, (g) 7 V, (h) 5 V, and (i) 3 V).
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