Dynamics of wetting of tiny drops: Ellipsometric study of the late stages of spreading
- 13 March 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (11) , 1286-1289
- https://doi.org/10.1103/physrevlett.62.1286
Abstract
Via ellipsometry, we study the profile evolution of very small drops (about μl) of nonvolatile liquids, spreading completely on silicon wafers. The evolution of the profiles are studied at molecular thicknesses, and for the first time it is shown that (i) the final stage of spreading in the cases studied is not a pancake, as predicted by the theory of de Gennes and Joanny (for S/γ≪1), but rather is a two-dimensional gas and (ii) short-range forces and molecular dymanics may drastically affect the profile of the droplet.
Keywords
This publication has 12 references indexed in Scilit:
- Final Stages of Spreading of Polymer Droplets on Smooth Solid SurfacesEurophysics Letters, 1988
- Precursor Film Profiles of Spreading Liquid DropsPhysical Review Letters, 1988
- Atomic force microscopy and scanning tunneling microscopy with a combination atomic force microscope/scanning tunneling microscopeJournal of Vacuum Science & Technology A, 1988
- Existence and Role of the Precursor Film in the Spreading of Polymer LiquidsPhysical Review Letters, 1986
- Wetting: statics and dynamicsReviews of Modern Physics, 1985
- UV/ozone cleaning of surfacesJournal of Vacuum Science & Technology A, 1985
- Viscoelastic studies of linear polydimethylsiloxanesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1984
- Fast polarization modulated ellipsometer using a microprocessor system for digital Fourier analysisReview of Scientific Instruments, 1982
- Optical Measurement of Film Growth on Silicon and Germanium Surfaces in Room AirJournal of the Electrochemical Society, 1957
- I. On reflexion from liquid surfaces in the neighbourhood of the polarizing angleJournal of Computers in Education, 1892