PREPARATION OF MICROPOROUS GOLD-FILMS BY 2-STEP REPLICATING PROCESS USING ANODIC ALUMINA AS TEMPLATE

A new method to prepare microporous Au films was demonstrated. Microporous Au films were fabricated by using a two-step replicating process in which an anodic porous alumina film was used as a template for replication. The Au films had straight micropores, and the distribution of their diameters was very sharp. In addition, the dimensions of the microstructure of the Au films could be controlled by changing the anodizing condition of the porous alumina. The surface morphologies of the porous films examined by scanning electron microscopy and the detailed condition of the fabrication are shown.