Numerical investigation of dewetting of evaporating thin films on nanometric topography

Evaporation and condensation of thin films can rupture or stabilize thin film .We show thatevaporation hastens dewetting of a thin film. We investigate the effect of step height sizeand type of the topography on the dewetting rate. Step topography causes pinning of thecontact line near the step. We also study the effect of the step size and the geometry on thepinning time of the contact line.

کلیدواژه ها:

dewetting ، evaporation ، pinning ، depinning ، condensation