Fig. 6From: Formation Regularities of Plasmonic Silver Nanostructures on Porous Silicon for Effective Surface-Enhanced Raman ScatteringSERS spectrum of the analyte molecules adsorbed on the Ag/PS substrate. A 10−6 M CuTMpyP4 aqueous solution was used as analyte solution. The Ag/PS substrate was formed by the immersion of PS in the 1 mM AgNO3 solution for 120 minBack to article page