Figure 4.

PL spectra from Si/SiO2nanoflakes. Bold line shows the emission spectrum before incubation in PBS. Thin line: after 240-min incubation time. Dashed spectrum is collected after 270-min incubation time

Amato Nanoscale Research Letters 2010 5:1156-1160   doi:10.1007/s11671-010-9619-9