Figure 3From: Fabrication of ordered nanoporous anodic alumina prepatterned by mold-assisted chemical etching SEM micrographs of anodization sample (a) alumina pores obtained from aluminum foils. (b) alumina pores grown in the 1D grating-patterned area. (c) alumina pores grown in the unpatterned area. Anodization conducted in 0.3 M H3PO4 at 110 V and 5°C.Back to article page