Figure 31.

Growth of complex hybrid core|shell NHCs with tailored structures and compositions of the monocrystalline shells. (A–C) Control of the monocrystalline cation species within the shell: the case of Au|(CdS+PbS). (A) Sketch of the growth procedure. (B) Low-resolution TEM image. Scale bar, 20 nm. (C) (top) High-resolution TEM image. Blue and green dashed arc curves highlight the monocrystalline CdS and PbS domains, respectively. CdS and PbS manifest distinct lattice planes that can be assigned to (100) and (220), respectively. Scale bar, 5 nm. (bottom) Single-particle EDS measurements in the CdS and PbS domains. Peaks from Cd, Pb, and S elements are highlighted. Adapted with permission from ref (106). Copyright 2010 The American Association for the Advancement of Science.