Preparation and characterization of asymmetric soap films on vertical si/sio2-interfaces

G. Schneider; W. Knoll; E. Sackmann; J. G.H. Joosten

doi:10.1209/0295-5075/1/9/005

Preparation and characterization of asymmetric soap films on vertical si/sio₂-interfaces

G. Schneider, W. Knoll, E. Sackmann, J. G.H. Joosten

Department of Bioscience

Research output: Contribution to journal › Article › peer-review

Abstract

Stable water films covered by arachidic-acid monolayers are deposited on vertically arranged Si/SiO₂ substrates which are partially pulled out of a film balance. The applicability of such asymmetric soap films to study the process of monolayer deposition on solid substrates and the fluid-solid interface interaction as a function of lateral pressure, π, is demonstrated. Equilibrium thicknesses of h¹₀ = 17nm and h²₀ = 4 nm and a decrease of h¹₀ by 1.5 nm at decreasing π from 25 to 15 mN m^-1 is observed. Light scattering experiments provide first evidence for large thickness fluctuations during thinning.

Original language	English
Pages (from-to)	449-454
Number of pages	6
Journal	Europhysics Letters
Volume	1
Issue number	9
DOIs	https://doi.org/10.1209/0295-5075/1/9/005
State	Published - 1 May 1986

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abstract = "Stable water films covered by arachidic-acid monolayers are deposited on vertically arranged Si/SiO2 substrates which are partially pulled out of a film balance. The applicability of such asymmetric soap films to study the process of monolayer deposition on solid substrates and the fluid-solid interface interaction as a function of lateral pressure, π, is demonstrated. Equilibrium thicknesses of h10 = 17nm and h20 = 4 nm and a decrease of h10 by 1.5 nm at decreasing π from 25 to 15 mN m-1 is observed. Light scattering experiments provide first evidence for large thickness fluctuations during thinning.",

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N2 - Stable water films covered by arachidic-acid monolayers are deposited on vertically arranged Si/SiO2 substrates which are partially pulled out of a film balance. The applicability of such asymmetric soap films to study the process of monolayer deposition on solid substrates and the fluid-solid interface interaction as a function of lateral pressure, π, is demonstrated. Equilibrium thicknesses of h10 = 17nm and h20 = 4 nm and a decrease of h10 by 1.5 nm at decreasing π from 25 to 15 mN m-1 is observed. Light scattering experiments provide first evidence for large thickness fluctuations during thinning.

AB - Stable water films covered by arachidic-acid monolayers are deposited on vertically arranged Si/SiO2 substrates which are partially pulled out of a film balance. The applicability of such asymmetric soap films to study the process of monolayer deposition on solid substrates and the fluid-solid interface interaction as a function of lateral pressure, π, is demonstrated. Equilibrium thicknesses of h10 = 17nm and h20 = 4 nm and a decrease of h10 by 1.5 nm at decreasing π from 25 to 15 mN m-1 is observed. Light scattering experiments provide first evidence for large thickness fluctuations during thinning.

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Preparation and characterization of asymmetric soap films on vertical si/sio₂-interfaces

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