Surface Plasmons and Surface Enhanced Raman Spectra of Aggregated and Alloyed Gold-Silver Nanoparticles
Figure 6
SERS measurements of 4-MBA on the two different substrates (sample A—black solid line, sample B—red dashed line) using two excitation lasers, 514 nm (ArL) and 633 nm (HeNe) left and right graph, resp.