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Figure 1
(a) Aberration-corrected FEI Titan G2 80–200 kV scanning transmission electron microscope equipped with the `Super-X' XEDS detector system at the University of Manchester (being filmed for the BBC News). (b) Composite XEDS elemental map obtained for a sample of quantum dots and revealing a core-shell morphology [unpublished data similar to the sample shown in McElroy et al. (2014 ![]() ![]() |