Figure 2 | Scientific Reports

Figure 2

From: A simple and reliable approach for the fabrication of nanoporous silver patterns for surface-enhanced Raman spectroscopy applications

Figure 2

SEM images of SERS substrates covered by a (a) 10 nm, (b) 30 nm, (c) 50 nm and (d) 200 nm Ag layer and treated for 90 s with the air-based plasma and for 50 s with the Ar-based plasma (scale bar = 1 \(\upmu \)m). The insets in the upper right corners show the magnification of the SEM image (scale bar = 500 nm), whereas, the insets in the lower left corners show the PSD.

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