Fabrication and characterization of anodic aluminum oxide template
In this paper, anodic aluminum oxide (AAO) templates were fabricated using a two-step oxidization method, pore-widening was then fulfilled in 5 wt% phosphoric acid at 37C. The AAO template prepared under 40 V constant potential presents the optimum ordering. The pore diameter and spacing are proportional to the forming voltage, which is due to the alternative migration velocity of reactive ions under electric field according to the growthdissolution model. Further pore adjustment depends on the time of pore-widening in phosphoric acid. The characterization of the AAO template was measured by atomic force microscopy (AFM) and X-ray diffraction (XRD).
aao template afm pore-widening time