Figure 4From: Fabrication of ordered nanoporous anodic alumina prepatterned by mold-assisted chemical etching AFM and SEM images of Al prepattern and AAO (a) 2D Al prepatten after RD-WETS. (b, c) 2D prepattern-induced regular AAO array. Anodization conducted in 0.3 M H3PO4 at 110 V and 5°C.Back to article page