164953.fig.002a
(a)
164953.fig.002b
(b)
164953.fig.002c
(c)
164953.fig.002d
(d)
Figure 2: The AAO surface area and SEM images; (a) evaluated curves of AAO surface area based on a 1 cm2 substrate, (b) AAO with 15 nm pore size, (c) AAO with 60 nm pore size, and (d) AAO with 500 nm pore size.