STRUCTURE OF THE LAYER OF IRREVERSIBLY ADSORBED SPHEROIDS

Structure of the layer formed by irreversibly adsorbed particles or sp heroidal shape has been quantitatively characterized in terms of the i sotropic pair correlation functions g(o) and the directional order par ameter q. Both the cases of hard and soft interaction potentials have been considered. In the latter case a two-parametric; Yukawa-type pote ntial was used to describe the electrostatic double-layer interactions among particles. In contrast to previous studies, the particles were allowed to adsorb not only flat (side-on) but under arbitrary angle to the adsorption plane (quasi 3D adsorption regime). Populations of ads orbed prolate spheroids needed for evaluation of g(o) and the structur e parameter were generated in Monte-Carlo type simulations based on th e random sequential adsorption (RSA) approach. It has been found that adsorption layer shows a short-range liquid-like ordering whose magnit ude is increased by the repulsive interactions.