It is know that XPS (X-ray Photoelectron Spectroscopy) gives elemental composition (what elements are present) and the chemical state/s (what other elements they are bonded to). I wish to know how XPS helps in knowing overall ''electronic structure'' and ''density of electronic states'' in the material being characterized.
Some older a more recent articles on the use XPSand UPS for this purpose
Article Electronic Densities of States from X-Ray Photoelectron Spectroscopy
Article XPS and UPS study of the valence band structure and chemisor...
https://th.fhi-berlin.mpg.de/th/lectures/summer_term_2006/7_spectroscopies.pdf
I hope they help
Aman Arora XPS characterizes the surface of a material rather than the bulk. The surface and the bulk of a material must be different in a mixture or in the presence of air or moisture.
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