ArticleScience advances2019
Dynamic deformability of individual PbSe nanocrystals during superlattice phase transitions.
Article in Science advances, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Graphene-Based Liquid Cell Designs for In Situ Liquid-Phase Transmission Electron Microscopy: Recent Developments and Perspectives.Small science · 2025Review
- Facet-selective etching trajectories of individual semiconductor nanocrystals.Science advances · 2022Article
- Identification of a quasi-liquid phase at solid-liquid interface.Nature communications · 2022Article
- Surface-ligand-induced crystallographic disorder-order transition in oriented attachment for the tuneable assembly of mesocrystals.Nature communications · 2022Article
- Article
- Effect of structure: A new insight into nanoparticle assemblies from inanimate to animate.Science advances · 2020Review
- Unravelling three-dimensional adsorption geometries of PbSe nanocrystal monolayers at a liquid-air interface.Communications chemistry · 2020Article
- Collective topo-epitaxy in the self-assembly of a 3D quantum dot superlattice.Nature materials · 2020Article
- Supercrystallography-Based Decoding of Structure and Driving Force of Nanocrystal Assembly.Materials (Basel, Switzerland) · 2019Review
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Authors and funding
11 authors.
Funding
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Abstract
The behavior of individual nanocrystals during superlattice phase transitions can profoundly affect the structural perfection and electronic properties of the resulting superlattices. However, details of nanocrystal morphological changes during superlattice phase transitions are largely unknown due to the lack of direct observation. Here, we report the dynamic deformability of PbSe semiconductor nanocrystals during superlattice phase transitions that are driven by ligand displacement. Real-time high-resolution imaging with liquid-phase transmission electron microscopy reveals that following ligand removal, the individual PbSe nanocrystals experience drastic directional shape deformation when the spacing between nanocrystals reaches 2 to 4 nm. The deformation can be completely recovered when two nanocrystals move apart or it can be retained when they attach. The large deformation, which is responsible for the structural defects in the epitaxially fused nanocrystal superlattice, may arise from internanocrystal dipole-dipole interactions.
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Registered trials
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