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Keywords:

  • field-effect transistors;
  • nanoparticles;
  • nanostructures;
  • semiconductors;
  • superlattices
Thumbnail image of graphical abstract

Snuggle up: Nanocrystals have long been known to form ordered arrays and superlattices, but traditional organic capping ligands keep the nanocrystals separated, precluding conductivity. Now researchers have used molecular metal chalcogenide caps to form 2D and 3D nanocrystal arrays (see picture) with closer packing and much improved conductivity.