Fig. 3From: Fabrication of a light-emitting device based on the CdS/ZnS spherical quantum dotsPL spectrum of QWQDs vs wave length at different W values for a) core CdS, b) core/shell CdS/ZnS, c) CdS/ZnS/CdS and d) CdS/ZnS/CdS/ZnSBack to article page