Journal ArticleDOI
Influence of capillary condensation of water on nanotribology studied by force microscopy
M. Binggeli,C. M. Mate +1 more
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TLDR
In this article, the influence of capillary condensation and humidity to friction and adhesion properties on a nanometer scale has been studied using a bidirectional force microscope, and strong capillary formation was observed at high humidities, whereas, on less hydrophilic amorphous carbon films and lubricated silicon oxide surfaces, capillary forming is suppressed.Abstract:
The influence of capillary condensation and humidity to friction and adhesion properties on a nanometer scale has been studied using a bidirectional force microscope. On a hydrophilic silicon oxide surface strong capillary formation could be observed at high humidities, whereas, on less hydrophilic amorphous carbon films and lubricated silicon oxide surfaces, capillary formation is suppressed. The hydrophilicity of the surface is also found to promote the lubricative effects of adsorbed water.read more
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"Dip-Pen" Nanolithography
TL;DR: A direct-write "dip-pen" nanolithography (DPN) has been developed to deliver collections of molecules in a positive printing mode, making DPN a potentially useful tool for creating and functionalizing nanoscale devices.
Journal ArticleDOI
Force-distance curves by atomic force microscopy
Bruno Cappella,Giovanni Dietler +1 more
TL;DR: Atomic force microscopy (AFM) force-distance curves have become a fundamental tool in several fields of research, such as surface science, materials engineering, biochemistry and biology.
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Scratching the Surface: Fundamental Investigations of Tribology with Atomic Force Microscopy.
TL;DR: The goal of this paper is to demonstrate that AFM is capable of producing atomic-scale knowledge, and to focus upon some of the contributions of the AFM to nanotribology.
Journal ArticleDOI
Evolution of the Adsorbed Water Layer Structure on Silicon Oxide at Room Temperature
David B. Asay,Seong H. Kim +1 more
TL;DR: The molecular configuration of water adsorbed on a hydrophilic silicon oxide surface at room temperature has been determined as a function of relative humidity using attenuated total reflection (ATR)-infrared spectroscopy and indicates that the outermost layer of the Adsorbed water molecules undergoes transitions in equilibrium behavior as humidity varies.
Journal ArticleDOI
Calibration of frictional forces in atomic force microscopy
TL;DR: In this article, an in situ experimental procedure is presented to determine the response of a cantilever to lateral forces in terms of its normal force response using optical lever deflection sensing.
References
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Physical chemistry of surfaces
TL;DR: In this paper, the authors discuss the nature and properties of liquid interfaces, including the formation of a new phase, nucleation and crystal growth, and the contact angle of surfaces of solids.
Journal ArticleDOI
Contact of Nominally Flat Surfaces
TL;DR: In this article, the authors proposed a new theory of elastic contact, which is more closely related to real surfaces than earlier theories, and showed how the contact deformation depends on the topography of the surface, and established the criterion for distinguishing surfaces which touch elastically from those which touch plastically.
Journal ArticleDOI
Atomic-scale friction of a tungsten tip on a graphite surface.
TL;DR: Using an atomic force microscope, atomic-scale features on the frictional force acting on a tungsten wire tip sliding on the basal plane of a graphite surface at low loads are observed.
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Improved fiber‐optic interferometer for atomic force microscopy
TL;DR: In this article, a high-sensitivity fiber-optic displacement sensor for atomic force microscopy is described based on the optical interference occurring in the micron-sized cavity formed between the cleaved end of a singlemode optical fiber and the microscope cantilever.