We use Monte Carlo simulations to investigate the behavior
of Janus
spheres composed of attractive and repulsive parts confined between
two parallel solid surfaces. The slits with identical and competing
walls are studied. The adsorption isotherms of Janus particles are
determined, and the impact of the density in the pore on the morphology
is discussed in detail. So far, this issue has not been systematically
investigated. New, unique structures are observed along the isotherms,
including the bilayer and three-layer structures located at different
distances from the walls. We analyze how selected parameters affect
the positional and orientational ordering in these layers. In some
cases, the particles form highly ordered hexagonal lattices.