Surface enhanced Raman scattering (SERS) in the visible range on scalable aluminum-coated platforms.

We demonstrate the potential of combining plasmonic Bragg grating structures, with the scattering effect of a rough Al layer to tune SERS enhancement in the visible region. Novel Al-based substrates with good analytical reproducibility and enhancement factors in the range of 107-109 are produced by a scalable procedure which meets the development of producing sustainable SERS platforms.