TEM images of the reactant
CdE (E = S, Se, and Te) and fully exchanged
product NCs. In the Figure, each reactant-product pair is indicated
by an arrow connecting the two panels: (a → b) CdTe-PtTe, (c
→ d) CdSe-PdSe, (e → f) CdS-PtS, (g → h) CdSe-PtSe,
(i → l) CdTe-PtTe2. Scale bars in a–h are
10 nm. (a–h) Reproduced from [Wark, S. E.; Hsia, C.-H.; Son,
D. H. Effects of Ion Solvation and Volume Change of Reaction on the
Equilibrium and Morphology in Cation-Exchange Reaction of Nanocrystals J. Am. Chem. Soc. 2008, 130, 9550–9555]. Copyright 2008 American Chemical Society. (i–l)
Reproduced from [Moon, G. D.; Ko, S.; Xia, Y.; Jeong, U. Chemical
Transformations in Ultrathin Chalcogenide Nanowires ACS Nano2010, 4, 2307–2319]. Copyright
2010 American Chemical Society.