546027.fig.005a
(a)
546027.fig.005b
(b)
546027.fig.005c
(c)
546027.fig.005d
(d)
Figure 5: TEM images of nanocrystals: (a) undoped-PbSNi0 (b) doped-PbSNi6 (with 6 mLs). (c) y (d) an HRTEM of PbSNi12 and their respective selected area electron diffraction (SAED) pattern of plain core (PbS) and core-shell nanocrystals.