Research Article

Plasmonic Properties of Vertically Aligned Nanowire Arrays

Figure 4

Representative SEM images of Si NWs produced by wet chemical etching (a), and silver-coated Si NWs (b). The sample stage was tilted 45° when imaging. (c) Surface-enhanced Raman spectroscopy (SERS) patterns at different spots.
843402.fig.004a
(a)
843402.fig.004b
(b)
843402.fig.004c
(c)