Fluorescence spectra of the cross-section of several PSi layers. Espectra are recorded on a point situated at 3 μm from Si-PSi interface. (a) Loaded with sample-ref II (Ag/H2O), (b) unloaded × 5, (c) loaded with sample IV (Em/MeOH) × 10, and (d) loaded with sample II (Em/Ag/H2O). Pore size is 60 nm.
Hernandez et al. Nanoscale Research Letters 2012 7:364 doi:10.1186/1556-276X-7-364