Measuring the Mechanical Properties of Preformed, Nanometer-Size Gold Clusters with the Atomic Force Microscope

  • D. M. Schaefer
  • A. Patil
  • R. P. Andres
  • R. Reifenberger


An atomic force microscope has been used in the attractive (noncontact) force mode to image individual nanometer-size Au clusters preformed in the gas phase and deposited on a wide variety of atomically flat substrates. Contact imaging modes are shown to provide sufficient lateral forces to dislodge the clusters. Using a noncontact technique, it is possible to reliably image preformed clusters in their as-deposited positions. This capability allows nanoindentation studies to measure the mechanical properties of individual nanometer-size Au clusters supported on highly oriented pyrolitic graphite and permits a measure of the deformation of a nanometer-size cluster as a function of the applied load.


Atomic Force Microscope Flat Substrate Bulk Gold Nanoindentation Experiment Noncontact Mode 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • D. M. Schaefer
    • 1
  • A. Patil
    • 2
  • R. P. Andres
    • 2
  • R. Reifenberger
    • 3
  1. 1.Surface Chemistry BranchNaval Research LaboratoryUSA
  2. 2.School of Chemical EngineeringPurdue UniversityW. LafayetteUSA
  3. 3.Department of PhysicsPurdue UniversityW. LafayetteUSA

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