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Adhesion energy of single wall carbon nanotube loops on various substrates

Abstract : The physics of adhesion of one-dimensional nano structures such as nanotubes, nano wires, and biopolymers on different substrates is of great interest for the study of biological adhesion and the development of nano electronics and nano mechanics. In this paper, we present force spectroscopy experiments of individual single wall carbon nanotube loops using a home-made interferometric atomic force microscope. Characteristic force plateaus during the peeling process allow the quantitative measurement of the adhesion energy per unit length on various substrates: graphite, mica, platinum, gold, and silicon. Moreover, using a time-frequency analysis of the deflection of the cantilever, we estimate the dynamic stiffness of the contact, providing more information on the nanotube configurations and its intrinsic mechanical properties.
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Submitted on : Tuesday, September 2, 2014 - 10:55:44 AM
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Tianjun Li, Anthony Ayari, Ludovic Bellon. Adhesion energy of single wall carbon nanotube loops on various substrates. Journal of Applied Physics, American Institute of Physics, 2015, 117, pp.164309. ⟨10.1063/1.4919355⟩. ⟨ensl-01059883⟩



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