scholarly journals Quantitative electrostatic force measurement and characterization based on oscillation amplitude using atomic force microscopy

AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015143
Author(s):  
Kesheng Wang ◽  
Yijia Lu ◽  
Jia Cheng ◽  
Xiaoying Zhu ◽  
Linhong Ji
2019 ◽  
Vol 10 ◽  
pp. 617-633 ◽  
Author(s):  
Aaron Mascaro ◽  
Yoichi Miyahara ◽  
Tyler Enright ◽  
Omur E Dagdeviren ◽  
Peter Grütter

Recently, there have been a number of variations of electrostatic force microscopy (EFM) that allow for the measurement of time-varying forces arising from phenomena such as ion transport in battery materials or charge separation in photovoltaic systems. These forces reveal information about dynamic processes happening over nanometer length scales due to the nanometer-sized probe tips used in atomic force microscopy. Here, we review in detail several time-resolved EFM techniques based on non-contact atomic force microscopy, elaborating on their specific limitations and challenges. We also introduce a new experimental technique that can resolve time-varying signals well below the oscillation period of the cantilever and compare and contrast it with those previously established.


Langmuir ◽  
2008 ◽  
Vol 24 (6) ◽  
pp. 2271-2273 ◽  
Author(s):  
Leonard T. W. Lim ◽  
Andrew T. S. Wee ◽  
Sean J. O'Shea

2012 ◽  
Vol 3 ◽  
pp. 336-344 ◽  
Author(s):  
Miriam Jaafar ◽  
David Martínez-Martín ◽  
Mariano Cuenca ◽  
John Melcher ◽  
Arvind Raman ◽  
...  

We introduce drive-amplitude-modulation atomic force microscopy as a dynamic mode with outstanding performance in all environments from vacuum to liquids. As with frequency modulation, the new mode follows a feedback scheme with two nested loops: The first keeps the cantilever oscillation amplitude constant by regulating the driving force, and the second uses the driving force as the feedback variable for topography. Additionally, a phase-locked loop can be used as a parallel feedback allowing separation of the conservative and nonconservative interactions. We describe the basis of this mode and present some examples of its performance in three different environments. Drive-amplutide modulation is a very stable, intuitive and easy to use mode that is free of the feedback instability associated with the noncontact-to-contact transition that occurs in the frequency-modulation mode.


2014 ◽  
Vol 627 ◽  
pp. 35-39
Author(s):  
Jen Ching Huang ◽  
Ho Chang ◽  
Yong Chin You ◽  
Hui Ti Ling

This study focused on the ultrasonic nanomachining by atomic force microscopy (AFM) to understand the phenomena of the ultrasonic nanomachining. The workpiece is an Au/Ti thin film and coated on the quartz crystal resonator (QCR). The ultrasound vibration of workpiece is carried out by used the Quartz crystal microbalance (QCM). And a normal force measurement model was built by force curve measurements in ultrasound vibration environment. The influence of different experimental parameters can be studied such as normal force and repeat number on the cutting depth and chip stacking. After the experiments, it can be found that the ultrasonic nanomachining by AFM is possessed great influence on the cutting depth.


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