Research Article
Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles
Figure 6
Four surface-enhanced Raman scattering spectra recorded on the Ag@polyvinylpyrrolidone-29000-based sensor after incubation with rhodamine 6G 10−3 M for 1 h. Measurements have been taken at random position with a separation of at least 0.2 cm. The reproducibility among different spectra is within the order of 30%.