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Influence of the Ce-F interaction on cerium photoelectron spectra in CeOXFY layers

Publikace na Matematicko-fyzikální fakulta |
2015

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

Fluorine atoms have been reported as an impurity in cerium oxide; however, their influence on the electronic structure and chemical properties is not well understood yet. We show the changes in Ce 3d photoelectron spectra features induced by fluorine.

We introduce a fitting procedure which allows to evaluate the concentration of fluorine in the cerium oxide layer. A correlation between the fluorine concentration and the characteristic Ce-F interaction doublets added to Ce 3d spectra fits is presented in this Letter.

We studied also the interaction of the prepared layers with small doses of CO and O-2 gases at elevated temperatures.