Self-assembly of Janus disks confined in a slit

Using Monte Carlo simulations, we investigate the self-organization of Janus disks confined in two-dimensional slits. Janus particles are modeled as circles composed of attractive and repulsive parts. We consider the slits with identical walls and slits with competing walls (the so-called Janus-like pores). We investigate how the system morphology depends on the slit width, density, and temperature. Different unique orientationally ordered structures are found. The mechanism of formation of these structures is discussed in detail. We show that the anisotropic interactions between the confined molecules, the nature of the "walls," and the slit size strongly affect the self-organization.