The fabrication of AAO involves placing aluminum in an electrolyte solution and applying an electric current. This process causes the aluminum to oxidize and form a porous oxide layer. Parameters such as the type of electrolyte, temperature, and voltage can be adjusted to control the size and distribution of the pores, which typically range from 10 to 400 nanometers in diameter. This tunability makes AAO a valuable material for various nanofabrication applications.
