736478.fig.005a
(a)
736478.fig.005b
(b)
Figure 5: (a) PL saturation curve for a sample with Si-NCs embedded in silica (blue circles) and with Si-NCs and Au NPs (red squares), (b) lifetime PL for a set of emission wavelength. The insets shows a typical PL decay curve for sample A (upper left) and sample A(Au) 1 (lower right).