Abstract
Ideally ordered anodic porous alumina through-hole membranes were prepared by a combination of the pretexturing of Al and subsequent two-layer anodization. In the two-layer-anodized sample, the selective dissolution of a layer formed in concentrated H2SO4 generated an ideally ordered through-hole membrane. The repetition of two-layer anodization and the detachment of the membrane allowed the high-throughput preparation of an ideally ordered anodic porous alumina membrane from a single pretextured Al substrate. The obtained ideally ordered through-hole membranes are expected to be used in various application fields that require ideally ordered through-hole membranes.
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