Patent ID: 8652317
Filing Date: 2014-02-18
Classification: B82Y,C25D,G11B

Abstract:
1. A method of fabricating an alumina nanohole array, comprising the steps of: providing an aluminum substrate and cooling the aluminum substrate to a substrate temperature of −80° C. or below; forming an aluminum thin-film having a purity of at least 99.9% on the aluminum substrate at the substrate temperature of −80° C. or below, which is a substrate temperature effective to form an aluminum thin-film having a smooth surface characterized as having an Rmax that is 3 nm or less; providing a mold having thereon an orderly array of projections; texturing the smooth surface of the aluminum thin-film by, in combination: anodizing the aluminum thin-film having pits formed therein to provide the alumina nanohole array.