Superlattice growth and rearrangement during evaporation-induced nanoparticle self-assembly.

ABSTRACT: Understanding the assembly of nanoparticles into superlattices with well-defined morphology and structure is technologically important but challenging as it requires novel combinations of in-situ methods with suitable spatial and temporal resolution. In this study, we have followed evaporation-induced assembly during drop casting of superparamagnetic, oleate-capped γ-Fe₂O₃ nanospheres dispersed in toluene in real time with Grazing Incidence Small Angle X-ray Scattering (GISAXS) in combination with droplet height measurements and direct observation of the dispersion. The scattering data was evaluated with a novel method that yielded time-dependent information of the relative ratio of ordered (coherent) and disordered particles (incoherent scattering intensities), super

SUBMITTER: Josten E 

PROVIDER: S-EPMC5459806 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature