Carbon nanotubes adhesion and nanomechanical behavior from peeling force spectroscopy |
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Authors: | J Buchoux L Bellon S Marsaudon J -P Aimé |
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Institution: | 1. Department of Physics, University of Guelph, N1G 2W1, Guelph, Ontario, Canada 2. Department of Physics and Astronomy, McMaster University, L8S 4M1, Hamilton, Ontario, Canada 3. The Canadian Institute for Advanced Research, M5G 1Z8, Toronto, Ontario, Canada
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Abstract: | Applications based on single walled carbon nanotube (SWNT) are good example of the great
need to continuously develop metrology methods in the field of nanotechnology. Contact and
interface properties are key parameters that determine the efficiency of SWNT
functionalized nanomaterials and nanodevices. In this work we have taken advantage of a
good control of the SWNT growth processes at an atomic force microscope (AFM) tip apex and
the use of a low noise (10−13 m/√Hz) AFM to investigate the mechanical behavior of a SWNT touching a
surface. By simultaneously recording static and dynamic properties of SWNT, we show that
the contact corresponds to a peeling geometry, and extract quantities such as adhesion
energy per unit length, curvature and bending rigidity of the nanotube. A complete picture
of the local shape of the SWNT and its mechanical behavior is provided. |
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Keywords: | |
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