Figure 2

TEM and HRTEM (inset) images of (a) bare green-emitting CdSe cores (2.5 nm); (b) corresponding green-emitting CdSe/ZnS(7) thick-shell QDs (7.2 ± 0.9 nm), lattice fringes with interlayer distance of 0.348 nm, and 0.317 nm are displayed. The crystallinity is confirmed by the distinct lattice fringes.