Volume 40, Number 3, November I 1997
|Page(s)||293 - 298|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
An exactly solvable continuum model of multilayer irreversible adsorption
Laboratoire Physique Théorique des Liquides, Université Pierre et Marie
4 Place Jussieu, 75252, Paris Cedex 05, France
Accepted: 12 September 1997
We present a continuum model of irreversible multilayer adsorption where particles are d-dimensional spheres that deposit from the (d+1)-th dimension onto a d-dimensional substrate. They are considered irreversibly adsorbed if they i) encounter the substrate or ii) land on another previously adsorbed particle. We derive exact expressions, valid in all dimensions, for the density and pair correlation function of the particles in the lowest layer, i.e. those contacting the substrate. We find that the first-layer density in irreversible multilayer adsorption is much lower than that found previously in irreversible monolayer adsorption. We further generalize this model to allow depositing particles to adsorb only if they "overhang" empty substrate by an amount less than a certain threshold. We present exact expressions of the density of adsorbed and overhanging particles in one dimension for this general model.
PACS: 68.10.Jy – Kinetics (evaporation, adsorption, condensation, catalysis, etc.) / 82.20.Wt – Computational modeling; simulation
© EDP Sciences, 1997
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