Can anyone suggest something to resolve the issue of distorted friction images on the AFM? We tried several things: switching off the system and computer, reconnecting wires, changing tip, scan rate, scan angles, gain values, vibration table, and sample. The scans are taken in contact mode at a very low normal load. The topography images are still better but friction images are just noise. We are using the 5500 Agilent Technologies AFM (pretty old). Thank you.
Nitika Parashar Is the manufacturer any help? That would be my first port of call…
I am not an expert in AFM, but this sometimes happens in my experiment. So since you used CM, perhaps you could change the tip and check/calibrate the spring constant and sensitivity again. You can also try to modify your tip with micro/nanoparticle to reduce the friction. Hope that helps
Alan F Rawle unfortunately the company that manufactured it has discontinued the product and related services. Wisnu Sudjarwo I tried doing that but it didn't help. Thank you for replying.
To obtain better AFM images, you should used high quality substrate (mica foil). The friction images are highly dependent on the instrument and the substrate we used.
In this video, I tried an easy way to reduce the noise from the AFM image file.
You can try it and let us know if it works with you.
I hope it is helpful for you
https://www.youtube.com/watch?v=3NZGuSQe4BQ&ab_channel=BASHEERAL-ANESI
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