Capillary liquid bridges in atomic force microscopy: formation, rupture, and hysteresis

The Journal of Chemical Physics
Yumei MenWenchuan Wang

Abstract

Atomic force microscopy (AFM) can work in a variety of environment with different humidities. When the tip of AFM approaches a sample, the measured adhesion force would be significantly affected by the presence of nanometer-sized liquid bridge. The formation and rupture of liquid bridges can occur either through equilibrium or nonequilibrium process. In this work, the liquid bridges are assumed to be in thermodynamic equilibrium with the surrounding vapor medium. To study theoretically the stability of liquid bridge, a constraint is added into the lattice density functional theory to stabilize a series of bridges with different radii at a given tip-substrate distance. With the help of the constraint, we can identify not only stable and metastable states but also transition states for the formation and rupture of liquid bridges. Using this constrained method we calculate the energy barriers involved in the formation and rupture of the liquid bridges, respectively, and then discuss their stability as well as the origin of the hysteresis behavior observed with atomic force microscope measurements. On the whole, the calculated force-distance curves are found to be qualitatively in agreement with experimental observations. The energ...Continue Reading

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Citations

Dec 4, 2012·International Journal of Molecular Sciences·Fabio L LeiteOsvaldo N Oliveira
Feb 20, 2014·The Journal of Physical Chemistry Letters·Jongwoo KimWonho Jhe
Feb 20, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Cathal D O'ConnellGordon G Wallace
Jun 14, 2013·The Journal of Chemical Physics·Qiumin GuoXianren Zhang
Feb 12, 2014·The Journal of Chemical Physics·Yawei LiuWenchuan Wang
Jan 10, 2013·The Journal of Chemical Physics·Yawei Liu, Xianren Zhang
Apr 3, 2012·The Journal of Chemical Physics·Yumei Men, Xianren Zhang
Apr 5, 2011·The Journal of Chemical Physics·Yumei MenWenchuan Wang
Nov 18, 2011·The Journal of Chemical Physics·Yawei LiuXianren Zhang
Jul 3, 2015·The Journal of Chemical Physics·Zhenjiang GuoXianren Zhang
Apr 7, 2016·Physical Chemistry Chemical Physics : PCCP·Gerson E ValenzuelaPedro G Toledo
Mar 22, 2014·Soft Matter·Qiumin GuoXianren Zhang
Jul 19, 2018·Scientific Reports·Peter NirmalrajMichael Mayer
Sep 29, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paulo I C Teixeira, Miguel A C Teixeira
Aug 16, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Yawei Liu, Xianren Zhang
Apr 2, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Perawat BoonpuekJonathan R Felts
Mar 15, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Nathan W Moore
Sep 20, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·A A HemedaY Ma
Apr 17, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Veikko Sariola
Oct 2, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Qingrui SongJiaxin Ye

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Methods Mentioned

BETA
atomic force microscopy
AFM

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