Please explain the step by step concept of XPS ,auger and
chemical shift in the graph...
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Mechanical Engineering
Please explain the step by step concept of XPS ,auger andchemical shift in the graph as simply as possible.
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In XPS the photon is absorbed by an atom in a molecule or solidleading to ionization and the emission of a core inner shellelectron By contrast in UPS the photon interacts with valencelevels of the molecule or solid leading to ionisation by removalof one of these valence electronsThe kinetic energy distribution of the emitted photoelectronsie the number of emitted photoelectrons as a function of theirkinetic energy can be measured using any appropriate electronenergy analyser and a photoelectron spectrum can thus berecordedThe process of photoionization can be considered in several ways one way is to look at the overall process as follows A h A eConservation of energy then
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