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나노입자 연구단
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Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution

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Title
Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution
Author(s)
Byung Hyo Kim; Junyoung Heo; Sungin Kim; Reboul, CF; Chun, H; Dohun Kang; Bae, H; Hyun, H; Lim, J; Lee, H; Han, B; Taeghwan Hyeon; Alivisatos, AP; Ercius, P; Elmlund, H; Jungwon Park
Publication Date
2020-04
Journal
SCIENCE, v.368, no.6486, pp.60 - +
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
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. Copyright © 2020 The Authors, some rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/7126
ISSN
0036-8075
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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