Surface-Enhanced Raman Spectroscopy of Dye and Thiol Molecules Adsorbed on Triangular Silver Nanostructures: A Study of Near-Field Enhancement, Localization of Hot-Spots, and Passivation of Adsorbed Carbonaceous Species

Figure 5

SERS of rhodamine 6G molecules on silver patterns of 3 μm diameter and 50 nm thickness. 𝜆=532nm. 𝑃_exc=15 μW. The spectra below were extracted from the pixels marked. Whereas for point 𝑃₂ only background was detected, at the edge of triangular particles, strong SERS spectra of R6G were measured (𝑃₁ and 𝑃₃).

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