# Self-assembly of active core corona particles into highly ordered and self-healing structures

## TL;DR

This paper demonstrates that active core corona particles can self-assemble into highly ordered, defect-healing structures, overcoming energy barriers typical in equilibrium systems, with an optimal activity level enhancing this process.

## Contribution

It introduces a novel theoretical mechanism where activity drives the formation of ordered structures and defect healing in core corona particles, a feat difficult in non-driven systems.

## Key findings

- Active particles form large-scale ordered stripes and lattices.
- Self-healing of defects occurs in activity-induced structures.
- An optimal activity level maximizes order formation.

## Abstract

Formation of highly ordered structures usually needs to overcome a high free-energy barrier that is greatly beyond the ability of thermodynamic fluctuation, such that the system would be easily trapped into a state with many defects and the annealing process of which often occurs on unreachable long time-scales. Here we report a fascinating example theoretically that active core corona particles can successfully self-assemble into a large-scaled and highly ordered stripe or trimer lattice, which is hardly achieved in a non-driven equilibrium system. Besides, such an activity-induced ordered structure shows an interesting self-healing feature of defects. In addition, there exists an optimal level of activity that most favorably enhance the formation of ordered self-assembly structures. Since core corona particles act as important units for self-assembly in real practice, we believe our study opens a new design-strategy for highly ordered materials.