Surface-Enhanced Raman Scattering Study of Silver Nanoparticles Prepared by Using MC as a Template

Figure 3

SEM images of the products obtained by different concentrations of silver ammonia chloride (0.2% MC, 0.1% sodium citrate): (a) 5 mM; (b) 10 mM; (c) 20 mM; (d) 30 mM.