Metallized nanoporous anodic alumina films and their applications

The optimal conditions of the aluminum electrochemical anodization and electrochemical and chemical metallization were determined. Metallized nanoporous anodic alumina (NAA) films with ultrahigh/average/low density of pores were obtained using the optimal conditions. The physical and chemical properties of the obtained NAA films were studied by high-resolution scanning electron microscopy and the reflective interference spectra in a wavelength range of 235-735 nm. Possible applications of the obtained NAA films are in micro/nanoscale lasers with indirect electrical pumping by laser diodes; optical interferometric chemical nanosensors; and the selective interference coloration and protection of the metal surface.