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