Fabrication and optical characterization of ultra-thin anodic aluminum oxide nanoporous templates

In this study, the fabrication of thin porous anodic aluminum oxide (AAO) templates with controllable thickness of 400-1300 nm is demonstrated. One-step anodizing method is used to generate AAO template with hexagonal porous distributed profile. The pore diameter pore-widening and AAO barrier layer thinned down are investigated. The morphologies and pore structures of the fabricated AAO templates are characterized using FE-SEM images and the transmittance and reflective spectra.