Vibrating Kelvin Sensor
in Hardware, Software | No Comments »
Tags: CPD, Kelvin Probe, research
This project is a related to my graduate school research that I carry out in my university. I have decided to share it with everybody to help others understand or build similar devices. I will try to touch upon several subtopics that could be useful in understanding the subject of studying adsorption using surface potentials.
To describe the underlying phenomenon in simple words: Metals contain a cloud of free electrons inside them that posses particular energies. The energies of a number of electrons in vicinity of the surface could be affected locally by a, let’s say, some molecule adsorbed on the surface. The effect within the metal depends on the electronic characteristics (i.e. dipole moment) of the molecule. Therefore, if there was a way to detect this change in energy one could say something about the adsorbed molecule.
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