Figure 3From: Self-assembled silver nanoislands formed on glass surface via out-diffusion for multiple usages in SERS applications Absorption spectra of the samples: curve 1, after the first anneal; curve 2, after the first anneal and formation of R6G 10 −7 M film; curve 3, after the first anneal and formation of R6G 10 −3 M film. The positions of SPR are marked with arrows. Back to article page