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GAMBETTI KENOLOGIA / PARK SYSTEMS

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Advances in Atomic Force Microscopy
PinPoint Piezo Force Microscope – frictionless imaging technique
(Seminar and Life Demo)

12 -13 September 2018, 14:30 – 16:00
Faculty of Civil and Industrial Engineering
Sapienza University of Rome

 

 Gabetti 01  Gabetti 02
 Conventional PFM (a,b) vs. PinPoint PFM (c,d)  NX10 AFM

 

ABSTRACT

Electromechanical coupling in materials is a key property that provides functionality to a variety of applications including: sensors, actuators, IR detectors, energy harvesting, and biology. Most materials exhibit electromechanical coupling in nanometer-sized domains. Therefore, to understand the relationships between structure and function of these materials, characterization on the nanoscale is required. This electromechanical coupling property can be directly measured in a non-destructive manner using piezoelectric force microscopy (PFM), a well – established method in atomic force microscopy (AFM).

The conventional PFM is usually performed in contact mode. Contact mode, however, has challenges for a great variety of samples, e.g. the characterization of an annealed phenanthrene thin film on top of an ITO surface. The main difficulty in imaging these samples is due to the phenanthrene thin film forming rod-shaped nanostructures that are very susceptible to displacement by a scanning AFM probe. This is the reason for the newly developed PinPointTM PFM mode by Park Systems. As opposed to standard contact mode, in PinPointTM mode the AFM probe monitors its feedback signal, approaches towards the sample surface until a predefined force threshold is reached, and measures the Z scanner’s height. The AFM probe is then rapidly retracted away from the surface to a user-defined height. During the data acquisition the XY scanner stops movement completely and therefore no AFM probe movement takes place on the sample surface at any time. This allows for a more accurate representation of the surface as the nanorods are not moved from their original position.

Join the seminar and live demo to learn more about advantages of PinPointTM PFM over a conventional PFM mode.

 

PROGRAMME:

14:30   Welcome and Introduction

14:40   Talk: “PinPoint Piezo Force Microscope – frictionless imaging technique

15:30   Instrument Demonstration on Park NX10 AFM

16:00   Discussion und Summary

 

SPEAKER INFORMATION:

Victor Bergmann – Application Scientist at Park Systems

 

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Organizing Secretariat

Dr. Cristina Gippa

+ 39 339 771 4107
+ 39 388 1785318

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