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3D mechanical measurements with an atomic force microscope on 1D structures.

Authors
  • Kallesøe, Christian
  • Larsen, Martin B
  • Bøggild, Peter
  • Mølhave, Kristian
Type
Published Article
Journal
Review of Scientific Instruments
Publisher
American Institute of Physics
Publication Date
Feb 01, 2012
Volume
83
Issue
2
Pages
23704–23704
Identifiers
DOI: 10.1063/1.3681784
PMID: 22380096
Source
Medline
License
Unknown

Abstract

We have developed a simple method to characterize the mechanical properties of three dimensional nanostructures, such as nanorods standing up from a substrate. With an atomic force microscope the cantilever probe is used to deflect a horizontally aligned nanorod at different positions along the nanorod, using the apex of the cantilever itself rather than the tip normally used for probing surfaces. This enables accurate determination of nanostructures' spring constant. From these measurements, Young's modulus is found on many individual nanorods with different geometrical and material structures in a short time. Based on this method Young's modulus of carbon nanofibers and epitaxial grown III-V nanowires has been determined.

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