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Breaking Force and Conductance of Gold Nanojunctions: Effect of Humidity.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Mohos Miklós, Pobelov Ilya V, Kolivoška Viliam, Mészáros Gábor, Broekmann Peter, Wandlowski Thomas,
Project Electron Transport at the Nanoscale - An Electrochemical Approach II
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Original article (peer-reviewed)

Journal The journal of physical chemistry letters
Volume (Issue) 5(20)
Page(s) 3560 - 4
Title of proceedings The journal of physical chemistry letters
DOI 10.1021/jz5019459


Forces acting on elongated gold nanojunctions and their electric conductance were simultaneously measured by current-sensing force spectroscopy in an atmosphere with controlled humidity. The breaking force of "thick" nanojunctions with conductance >20G0 is not affected by the environmental humidity. The presence of ambient water stabilizes "thin" nanojunctions with conductance <15G0, whose breaking force of 10-15 nN was higher than that in a dry atmosphere due to the capillary forces. The observed effect of humidity would not be possible to distinguish by techniques measuring only forces or only conductance in nanojunctions.