Research Article
Anodic Growth Behavior of TiO2 Nanotube Arrays with Process Parameter Control
Figure 9
FE-SEM image of TiO2 nanotube arrays with different voltage applying rate and dropping rate ((a) 0.1 V/s, immediately dropped, (b) 0.5 V/s, immediately dropped, (c) 1.0 V/s, immediately dropped, (d) 5.0 V/s, immediately dropped, (e) 10.0 V/s, immediately dropped, (f) 30.0 V/s, immediately dropped, (g) 60.0 V/s, immediately dropped, (h) 1.0 V/s, 1.0 V/s, and (i) 1.0 V/s, 0.1 V/s).
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