Fig. 2From: Fabrication of a light-emitting device based on the CdS/ZnS spherical quantum dotsTime evolution of QWQDs absorbance spectrum for a) core CdS, b) core/shell CdS/ZnS, C) CdS/ZnS/CdS, and d) white light emitting CdS/ZnS/CdS/ZnS. Here we assume that W = 5Back to article page