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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Synthesis of Reabsorption-Suppressed Type-II/Type-I ZnSe/CdS/ZnS Core/Shell Quantum Dots and Their Application for Immunosorbent Assay

Fig. 2

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), respectively

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