Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session A47: Undergraduate Research II
8:00 AM–11:00 AM,
Monday, March 6, 2023
Room: Room 313
Sponsoring
Unit:
SPS
Chair: Farah Dawood, APS
Abstract: A47.00001 : Cooled atomic force microscope for undergraduate research*
8:00 AM–8:12 AM
Presenter:
Cody Graves
(Slippery Rock University)
Author:
Cody Graves
(Slippery Rock University)
Collaborations:
Cody Graves, Sagar Bhandari
We have built the prototype for the cooled AFM. The base design hardware uses 3D printed parts while the electronics of the microscope are being designed to allow for a fully autonomous AFM. The base circuit uses a custom-made printed circuit board with a Raspberry Pi attached with control software for the microscope. The AFM is able to approach a sample using a PID control system that applies voltage to a piezoelectric tube with height information from the cantilever. We anticipate performing an imaging experiment on graphene samples at liquid Nitrogen temperature within the next few months. In this talk, I will present the design and implementation of the cooled AFM. In the future, we plan to condense the AFM further into a single FPGA chip and use a homemade cantilever chip to enhance the sensitivity. This will allow for better affordability and ease of use.
*Funding has been provided by NASA
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