Bare and protected sputtered-noble-metal films for surface-enhanced Raman spectroscopy

- Cheap and reproducible sputtered silver and gold SERS platforms are manufactured.
- Maximal Raman enhancement factors of ∼106 are observed.
- These platforms can be used over a wide energy range in the visible spectrum.
- Molecular adsorption can reduce silver corrosion.
- Molecular adsorption allows a high enhancement factor to be kept over days.