Self-organisation in two dimensional system involving patchy and isotropic disks

ABSTRACT

We study the phase behaviour and morphology of systems involving mixtures of isotropic and anisotropic particles. The investigations are carried out using Molecular Dynamics technique. For this purpose we have proposed a model suitable for Molecular Dynamic simulations of such systems. The main part of calculations was carried out for two system compositions. At equimolar composition dense systems exhibit a specific structure. Both components form two interwoven lattices. Anisotropic particles are arranged in a honeycomb-like structure, while the bundles of fluid molecules are located inside these hexagons. If the number of isotropic molecules per one anisotropic particle is larger, then dense systems order into lamellar, solid-like structures.

GRAPHICAL ABSTRACT

KEYWORDS:

• molecular dynamics
• self-organization in two-dimension
• mixture of anisotropic and spherical particles
• phase diagrams

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

WR and SS acknowledge support from NCN -Narodowe Centrum Nauki, Poland under Grant No. 2015/17/B/ST4/03615.