Fig. 4

Nanocrystal diameter in a multilayer sample as a function of the silicon-rich layer thickness. The mean nanocrystal diameter \(\bar {D}\) (solid symbols) and the mean equivalent diameter \(\bar {D}_{\text {equiv}}\) (open symbols) for samples with varying silicon-rich layer thicknesses. The black data points are obtained from Gutsch et al. [18]. The dashed line represents the equality between the nanocrystal diameter and the silicon-rich layer thickness