Fabrication of Highly Ordered Anodic Porous Alumina Using Self-organized Polystyrene Particle Array

Highly ordered anodic porous alumina was fabricated by anodization of vapor-deposited Al that had been deposited on a self-organized periodic array of polystyrene particles with a submicron-scale diameter on a glass plate. The ordered bumpy structure of the particle array surface was replicated on the deposited Al surface. Anodization was initiated at the concaves of the Al surface. Employment of the self-organized particle array to produce highly ordered anodic porous alumina with a submicron-scale channel structure was shown to be feasible.