Specific Process Knowledge/Characterization/XPS/Processing/Basics/2highres: Difference between revisions
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To analyze a single spectrum, select and maximize it. Before adding peaks to the spectrum, it is a good idea consider what you know about the sample. Here, I know that the sample has ALD deposited layers of ZnO and CuZn on top of a silicon substrate. I would therefore expect to see bulk silicon provided I sputter deep enough and oxidized silicon from the native oxide. Therefore, I scroll to a level where, preferably, both the oxidized Si2p and the bulk silicon Si2p are visible. In this case, it is level 35. | To analyze a single spectrum, select and maximize it. Before adding peaks to the spectrum, it is a good idea consider what you know about the sample. Here, I know that the sample has ALD deposited layers of ZnO and CuZn on top of a silicon substrate. I would therefore expect to see bulk silicon provided I sputter deep enough and oxidized silicon from the native oxide. Therefore, I scroll to a level where, preferably, both the oxidized Si2p and the bulk silicon Si2p are visible. In this case, it is level 35. | ||
<gallery | <gallery widths="350" heights="250" perrow="3"> | ||
Image:XPS-basics11a.jpg | Level 34 | Image:XPS-basics11a.jpg | Level 34 | ||
Image:XPS-basics11b.jpg | Level 35 | Image:XPS-basics11b.jpg | Level 35 | ||
Revision as of 15:09, 8 September 2015
Evaluation of high resolution spectra
The analysis of the data from here is continued. Open a new data grid and drag the four sets of spectra into each quadrant as seen below.
Scroll up or down through the levels of one spectrum by using the scroll button. If several spectra are selected simultaneously by pressing SHIFT or CTRL while clicking on the spectra in the four quadrant view, you watch the evolution of the spectra together.
To analyze a single spectrum, select and maximize it. Before adding peaks to the spectrum, it is a good idea consider what you know about the sample. Here, I know that the sample has ALD deposited layers of ZnO and CuZn on top of a silicon substrate. I would therefore expect to see bulk silicon provided I sputter deep enough and oxidized silicon from the native oxide. Therefore, I scroll to a level where, preferably, both the oxidized Si2p and the bulk silicon Si2p are visible. In this case, it is level 35.
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Level 34 -
Level 35 -
Level 36
If several levels are available, scroll to one where the the peak is clear. In this case of Si2p we need to go to the last level.