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  • Letter
  • Open Access

Control of structure and dynamics in polymer-networked engineered nanoparticle arrays by electric fields

Xingfei Wei and Ewa Harazinska

Rigoberto Hernandez*

  • Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA

  • Department of Chemistry, Department of Chemical & Biomolecular Engineering, and Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA

  • *Corresponding author: r.hernandez@jhu.edu

Phys. Rev. Research 5, L022057 – Published 20 June, 2023

DOI: https://doi.org/10.1103/PhysRevResearch.5.L022057

Abstract

Polymer-networked nanoparticles are the basis for advanced materials useful for wearable electronics, drug delivery, autonomous computing, and other applications. To characterize and predict the physics and underlying mechanisms of the network connections in two-and three-dimensional engineered nanoparticle arrays, we developed an analogous Potts model of three-state sites. Together with dissipative particle dynamics simulations, we found that the network structures in polymer-linked nanoparticle assemblies are generally dominated by the number of nearest neighbors and not the topology of the lattice. When the E field regulates the network connections, the links along the E-field direction always dominate the overall network structure.

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