The initial stage of pore formation and the growth process in anodic aluminum oxide (AAO) template have been carefully investigated. Detailed features are found concerning the nanostructure configuration formed on the electropolished aluminum foil and the additional fine structures in the first and second anodization resulting from the current limitation effect during the beginning time of about 2 s. It sheds new light onto the mechanism of the pore-organizing process of AAO templates.
Bibliographical noteFunding Information:
This work is supported by the NSF of China (grant numbers 50771032, 50771033, 10604016, and 60678008) and the National Basic Research Program of China (2009CB929201).
- Anodic aluminum oxide film
- Scanning electron microscopy
- Surface morphology