Figure 3

(a) Intensity ratios of different nanocrystal populations A (highest emission energy) to D (lowest emission energy), see legend in (b) for color codes and inset in Fig. 4 for a schematic representation. The CM spectral signature shown in Fig. 1 can be observed for all samples. (b) Magnification of the part marked by a dashed rectangle in (a). Peak position (indicated by arrows) and depth clearly shift, following the spectral signature expected from CM. See Fig. 4 for the corresponding modelling. (a,b) The errors are within the data symbols.