" /> X-Ray Photoelectron Spectroscopy - CISMeF





Preferred Label : X-Ray Photoelectron Spectroscopy;

NCIt synonyms : XPS; Electron Spectroscopy for Chemical Analysis; ESCA;

NCIt definition : A quantitative spectroscopic technique that both determines the identities and percent composition of elements in a material and measures the elemental chemical and electronic states for a sample. The process, which occurs in a vacuum, involves the irradiation of the material of interest with a beam of aluminum or magnesium X-rays while measuring both the kinetic energy and number of electrons that are released from the outer surface.;

NCIt note : This technique provides elemental and chemical information about the surface region (first 1-30 monolayers) of nearly any solid material, is sensitive to all elements except hydrogen, and can provide some chemical information about the valence state of elements.; Soft, mono-energetic x-rays illuminate a region of the sample and photoelectrons emanating from it are energy-analyzed. When coupled with an ion gun, depth profiling can be performed.;

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08/05/2025


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