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Related Experiment Videos

Adhesion artefacts in atomic force microscopy imaging

Paredes1, Martinez-Alonso, Tascon

  • 1Instituto Nacional del Carbon, CSIC, La Corredoria s/n, Apartado 73, 33080 Oviedo, Spain.

Journal of Microscopy
|December 7, 2000
PubMed
Summary
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Atomic force microscopy (AFM) artefacts in aramid fibres are caused by surface chemistry and topography. New methods uncouple these forces for accurate imaging and measurements.

Area of Science:

  • Materials Science
  • Surface Science
  • Nanotechnology

Background:

  • Atomic force microscopy (AFM) is crucial for nanoscale surface analysis.
  • Adhesion forces can introduce artefacts in AFM imaging, affecting contrast and quantitative measurements.
  • Aramid fibres, used in advanced materials, present unique challenges for AFM analysis due to their surface properties.

Purpose of the Study:

  • To investigate artefacts arising from adhesion forces in AFM images of aramid fibres.
  • To differentiate between artefacts caused by surface chemistry and topography.
  • To develop methods for removing these artefacts for more accurate analysis.

Main Methods:

  • Atomic force microscopy (AFM) was employed to image fresh and plasma-treated aramid fibres.

Related Experiment Videos

  • Analysis focused on adhesion forces and their contribution to image contrast.
  • Techniques were developed to decouple vertical and lateral force contributions.

    • Main Results:

    • Artefacts in AFM images of aramid fibres originate from both surface chemical variations and topographical features.
    • These artefacts result from lateral forces comparable to vertical forces, impacting image interpretation.
    • A method was successfully developed to uncouple these force contributions, eliminating artefacts.

    Conclusions:

    • The developed method allows for artefact-free AFM imaging of aramid fibres.
    • Accurate quantitative measurements can be obtained by removing adhesion force artefacts.
    • The findings are broadly applicable to AFM analysis of various materials.