Fabricating large two-dimensional single colloidal crystals by doping with active particles.

Using simulations we explore the behaviour of two-dimensional colloidal (poly)crystals doped with active particles. We show that these active dopants can provide an elegant new route to removing grain boundaries in polycrystals. Specifically, we show that active dopants both generate and are attracted to defects, such as vacancies and interstitials, which leads to clustering of dopants at grain boundaries. The active particles both broaden and enhance the mobility of the grain boundaries, causing rapid coarsening of the crystal domains. The remaining defects recrystallize upon turning off the activity of the dopants, resulting in a large-scale single-domain crystal.

• Publication year

  2015

• Venue

  Soft Matter

• Publication date

  2015-11-06

• Fields of study

  Medicine, Materials Science, Physics

• Identifiers
  DOI 10.1039/C6SM00031BarXiv 1511.02102PMID 26936131
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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