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Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution
Cited 97 time in
Web of Science
Cited 80 time in Scopus
- Authors
- Issue Date
- 2020-04
- Citation
- Science, Vol.368 No.6486, pp.60-67
- Abstract
- Precise three-dimensional (3D) atomic structure determination of individual nanocrystals is a prerequisite for understanding and predicting their physical properties. Nanocrystals from the same synthesis batch display what are often presumed to be small but possibly important differences in size, lattice distortions, and defects, which can only be understood by structural characterization with high spatial 3D resolution. We solved the structures of individual colloidal platinum nanocrystals by developing atomic-resolution 3D liquid-cell electron microscopy to reveal critical intrinsic heterogeneity of ligand-protected platinum nanocrystals in solution, including structural degeneracies, lattice parameter deviations, internal defects, and strain. These differences in structure lead to substantial contributions to free energies, consequential enough that they must be considered in any discussion of fundamental nanocrystal properties or applications.
- ISSN
- 0036-8075
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