Optical absorbtion of nanoporous anodic aluminum oxide membranes

Nanoporous anodic aluminum oxide (PAAO) membranes are extremely important nanomaterials with various potential applications in nanotechnology. They consist one-dimensional pores which are arranged in a honeycomb structure and are often used as the deposition template for fabricating one-dimensional nanostructures. The geometric coefficients of the pores such as pore size and aspect ratio can be altered over vast areas by varying the anodizing parameters. Therefore, it is possible to produce uniform one-dimensional nanomaterials with different size and aspect ratio by using these membranes. Moreover, they offer the advantage of possible in-situ annealing of the grown nanomaterial because of the thermal stability of aluminum oxide.