Specific Process Knowledge/Characterization/XPS/Processing/Basics/3fitting: Difference between revisions

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== Fitting the oxygen O1s core level ==
== Fitting the oxygen O1s core level ==


There is a few choices to make on the fitting of the O1s level. The level is an s-orbital and thus gives rise to a peak that is symmetric so any non-symmetric appearance must be caused several states of oxygen. The question is then to which states of oxygen they should be attributed.  
There is a few choices to make on the fitting of the O1s level. The level is an s-orbital and thus gives rise to a peak that is symmetric so any non-symmetric appearance must be caused several states of oxygen. The question is then to which states of oxygen they should be attributed. Below are shown the spectra of levels 0 (surface), 11 and 20.


[[Image:XPS-oxygenCapture 0022.PNG|300px| Level 0]]
[[Image:XPS-oxygenCapture 0022.PNG|300px| Level 0]]
[[Image:XPS-oxygenCapture 0011.PNG|300px| Level 11]]
[[Image:XPS-oxygenCapture 0011.PNG|300px| Level 11]]
[[Image:XPS-oxygenCapture 0033.PNG|300px| Level 20]]
[[Image:XPS-oxygenCapture 0033.PNG|300px| Level 20]]

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Fitting the oxygen O1s core level

There is a few choices to make on the fitting of the O1s level. The level is an s-orbital and thus gives rise to a peak that is symmetric so any non-symmetric appearance must be caused several states of oxygen. The question is then to which states of oxygen they should be attributed. Below are shown the spectra of levels 0 (surface), 11 and 20.

Level 0 Level 11 Level 20