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Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
Published on: December 2, 2022
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Developments for inverted atomic force microscopy.
James C Mabry1, Tim Yau, Hui-Wen Yap
1The Department of Chemistry, University of Alberta, Edmonton, Canada.
Ultramicroscopy
|September 5, 2002
Summary
This study introduces an improved inverted atomic force microscopy (i-AFM) design for enhanced friction measurement. The new fabrication methods enable detailed imaging of various substrates, advancing AFM capabilities.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Science
Background:
- Atomic force microscopy (AFM) is a powerful tool for nanoscale imaging.
- Modified AFM probes integrate chemical and biological information with physical measurements.
- Previous research explored an inverted AFM (i-AFM) design using tip arrays to image cantilever-supported samples.
Purpose of the Study:
- To enhance the applicability and performance of the inverted AFM (i-AFM) design.
- To develop improved cantilever and tip array fabrication methods for i-AFM.
- To demonstrate the first use of i-AFM for friction measurement.
Main Methods:
- Commercial cantilevers were modified using an epoxy-based procedure.
- Standard substrates including template-stripped gold, highly oriented pyrolytic graphite, and mica were attached to cantilevers.
- The modified cantilevers were imaged using the i-AFM setup.
Main Results:
- Successful modification of commercial cantilevers with various substrates.
- High-resolution imaging of these substrates using the i-AFM.
- Acquisition of lateral force images, demonstrating friction measurement capabilities.
Conclusions:
- The developed fabrication techniques improve the i-AFM design.
- This study presents the first successful friction measurement using the i-AFM.
- The enhanced i-AFM holds promise for advanced surface analysis and friction studies.
