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Cation exchange is a very powerful method for creating heterogeneous nanocrystals (NCs), such as core‐shell or rod‐tip nanostructures. Here we present an overview of the experimental and simulation efforts made to elucidate the atomic mechanism underlying cation exchange in PbSe/ ...

Oriented attachment of PbSe nanocubes can result in the formation of two-dimensional (2D) superstructures with long-range nanoscale and atomic order. This questions the applicability of classic models in which the superlattice grows by first forming a nucleus, followed by sequ ...