Fabrication of Silver Nanostructures over Anodic Aluminium Oxide for Efficient Surface-Enhanced Raman Scattering
2009
Abstract
Substrates for surface-enhanced Raman scattering (SERS) were prepared by vapor deposition of silver directly onto the surface of porous alumina. Silver nanostructures have been characterized by SEM and UV-Vis absorption.
The SERS-activity of the substrates tested with water-soluble cationic Cu-porphyrin as a probe molecule, attained the maximum when Ag mass thickness was approximately 60 nm.