AFM-Raman-Nano-IR Systems
Modular AFM
Automated AFM
Practical AFM



Archived Webinars

Dr. Sergei Magonov

New Developments in AFM Oscillatory Resonance Modes: Frequency Imaging and Frequency Modulation

The webinar took place on 28 May 2015

Presentation of  webinar   (4 Mb)  

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Dr. Sergei Magonov

High-Resolution and Quantitative AFM Mapping of Mechanical Properties of Polymers

The webinar took place on 12 February 11am MST

Presentation of webinar  (6 Mb)  

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Webinar Synopsis:

An extraction of mechanical properties from force curves in Atomic Force Microscopy (AFM) was originally suggested in 1989. Since then this capability has been developed tremendously, and it can be further broadened to address complex material behavior. Among the main AFM operations the recording of force curves in non-resonant oscillatory mode such as HybriD™ mode offers the most advanced mapping of mechanical properties. Fast recording and on-line analysis of the force-versus-time and force-versus-penetration dependencies in terms of solid state deformation models (Hertz, DMT, JKR, Oliver-Pharr, etc) allows simultaneous imaging of surface structures and quantitative mapping of their elastic modulus and work of adhesion. The practical results, which are obtained on samples of neat polymers, polymer blends and block copolymers, will be illustrated by the modulus and adhesion maps with a data density of 512x512 pixels and higher. A particular emphasis will be made on mapping of the mechanical properties of polymer materials in the sub-100 nm scale with a spatial resolution of 10 nm. 


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