Unknown

Dataset Information

0

In situ microscopy of the self-assembly of branched nanocrystals in solution.


ABSTRACT: Solution-phase self-assembly of nanocrystals into mesoscale structures is a promising strategy for constructing functional materials from nanoscale components. Liquid environments are key to self-assembly since they allow suspended nanocrystals to diffuse and interact freely, but they also complicate experiments. Real-time observations with single-particle resolution could have transformative impact on our understanding of nanocrystal self-assembly. Here we use real-time in situ imaging by liquid-cell electron microscopy to elucidate the nucleation and growth mechanism and properties of linear chains of octapod-shaped nanocrystals in their native solution environment. Statistical mechanics modelling based on these observations and using the measured chain-length distribution clarifies the relative importance of dipolar and entropic forces in the assembly process and gives direct access to the interparticle interaction. Our results suggest that monomer-resolved in situ imaging combined with modelling can provide unprecedented quantitative insight into the microscopic processes and interactions that govern nanocrystal self-assembly in solution.

SUBMITTER: Sutter E 

PROVIDER: S-EPMC4822026 | BioStudies | 2016-01-01

REPOSITORIES: biostudies

Similar Datasets

1000-01-01 | S-EPMC4827565 | BioStudies
| S-EPMC3482139 | BioStudies
2007-01-01 | S-EPMC2077042 | BioStudies
2015-01-01 | S-EPMC4686769 | BioStudies
2017-01-01 | S-EPMC5579102 | BioStudies
1000-01-01 | S-EPMC5253678 | BioStudies
| S-EPMC5861251 | BioStudies
1000-01-01 | S-EPMC5419700 | BioStudies
2017-01-01 | S-EPMC5442309 | BioStudies
2020-01-01 | S-EPMC7210259 | BioStudies