A sub-10 nm
nanopore template for nanotechnology applications
Nanoporous
alumina membranes are used in a wide range of applications, from photonics and
sensors to bioelectronics or filtration membranes, since they are basically a
'universal' mold for making zero- or one-dimensional nanostructures of mostly
any material or compound. With current fabrication processes, the main
limitations of porous alumina templates are their pore size, which cannot be
smaller than 25nm, and their polydomain structure, which prevents the
possibility of addressing each nanopore individually for electronics
applications