Abstract:
The formation of micrometer sized colloidal supercrystals assembled from faceted 20 nm Bi nanocrystals is studied. The self-assembly, induced by non-solvent into solvent diffusion, is studied by in-situ synchrotron x-ray scattering combined with Monte Carlo simulations. A unique orientation phase of the building blocks is revealed: the nanocrystal shape induces 6 distinct global orientations within the cubic superlattice based on a parallel facet-to-facet alignment.
doi.org/10.1002/adma.201802078