Connecting the particles in the box--controlled fusion of hexamer nanocrystal clusters within an AB₆ binary nanocrystal superlattice.

ABSTRACT: Binary nanocrystal superlattices present unique opportunities to create novel interconnected nanostructures by partial fusion of specific components of the superlattice. Here, we demonstrate the binary AB6 superlattice of PbSe and Fe2O3 nanocrystals as a model system to transform the central hexamer of PbSe nanocrystals into a single fused particle. We present detailed structural analysis of the superlattices by combining high-resolution X-ray scattering and electron microscopy. Molecular dynamics simulations show optimum separation of nanocrystals in agreement with the experiment and provide insights into the molecular configuration of surface ligands. We describe the concept of nanocrystal superlattices as a versatile 'nanoreactor' to create and study novel materials based on precisely d

SUBMITTER: Treml BE 

PROVIDER: S-EPMC4206872 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature