@article{BoLiuKuttichetal.2022,
  author    = {Bo, Arixin and Liu, Yawei and Kuttich, Bj{\"o}rn and Kraus, Tobias and Widmer-Cooper, Asaph and de Jonge, Niels},
  title     = {Nanoscale Faceting and Ligand Shell Structure Dominate the Self-Assembly of Non-Polar Nanoparticles into Superlattices},
  journal   = {Advanced materials},
  volume    = {34},
  number    = {20},
  doi       = {10.1002/adma.202109093},
  institution = {Innovative Electron Microscopy},
  year      = {2022},
  abstract  = {Self-assembly of nanoscale structures at liquid-solid interfaces occurs in a broad range of industrial processes and is found in various phenomena in nature. Conventional theory assumes spherical particles and homogeneous surfaces, but that model is oversimplified, and nanoscale in-situ observations are needed for a more complete understanding. We used liquid phase scanning transmission electron microscopy (LP-STEM) to examine the interactions that direct the self-assembly of superlattices formed by gold nanoparticles (AuNPs) in non-polar liquids. Varying the molecular coating of the substrate modulated short-ranged attraction and led to switching between a range of different geometric structures including hexagonal close-packed (hcp), simple hexagonal (sh), dodecahedral quasi-crystal (dqc), and body-centered cubic (bcc) lattices, as well as random distributions. Langevin dynamics simulations explain the experimental results in terms of the interplay between nanoparticle faceting, ligand shell structure, and substrate-NP-interactions.},
  language  = {en}
}