Figure 3From: Out-diffused silver island films for surface-enhanced Raman scattering protected with TiO2 films using atomic layer depositionAFM images of MIFs. The MIFs were prepared using annealing in hydrogen at 250°C and coated with 3-nm (top left), 10-nm (top right), 50-nm (bottom left), and 200-nm (bottom right) TiO2.Back to article page