Figure 2: Extinction coefficient spectra of nanocrystalline materials used for cores and shells in this work.

Spectra are shown for (a) CdSe QDs with different sizes, (b) HgxCd1-xSeyS1-y QDs with fixed size (2.3 nm) and different compositions (x,y), and (c) CdS QDs with different core sizes. Insets show absorption coefficients at specific wavelengths.