Competitive random sequential adsorption of binary mixtures of disks and discorectangles

The two-dimensional (2D) packings of binary mixtures of disks with diameter d and discorectangles with aspect ratio e (length-to-width ratio epsilon=l/d ) were studied numerically. The competitive random sequential adsorption (RSA) with simultaneous deposition of particles was considered. The aspect ratio was changed within the range epsilon=1-10 . In the competitive model, the particle was selected with probability pd (disks) and p epsilon=1-pd (discorectangles), and then they were placed sequentially on a solid surface without overlapping with previously placed particles. Behavior of the total coverage in jamming state phi T at different values of pd and e was analyzed. For core-shell structure of the particles the percolation connectivity of films was also discussed.