Fig. 2From: Synthesis of Reabsorption-Suppressed Type-II/Type-I ZnSe/CdS/ZnS Core/Shell Quantum Dots and Their Application for Immunosorbent Assay Left: XRD patterns of ZnSe/CdS/ZnS type-II/type-I QDs with different shell growth stages. The diffraction lines for zinc blende (ZB) ZnSe (bottom), WZ CdS (middle), and WZ ZnS (top) are indexed. Right: the corresponding TEM and HRTEM (inset, bar of 5 nm) images of the ZnSe core (a), ZnSe/CdS type-II QDs with 2 ML (b), 4 ML (c) and 6 ML (d) CdS shell, respectively, and ZnSe/CdS/ZnS type-II/type-I QDs with 3 ML (E) and 6 ML (F), respectivelyBack to article page