Stability of thin liquid films and sessile droplets under confinement.

摘要: The stability of nonvolatile thin liquid films and sessile droplets is strongly affected by finite size effects. We analyze their within the framework density functional theory using sharp kink approximation, i.e., on basis an effective interface Hamiltonian. show that effects suppress spinodal dewetting because it driven a long-wavelength instability. Therefore are stable if substrate area too small. Similarly, connected to wetting film become unstable large. This instability droplet turns out be equivalent volatile drop which can attain chemical equilibrium with its vapor.