Article ID Journal Published Year Pages File Type
5359804 Applied Surface Science 2009 5 Pages PDF
Abstract
Sn addition in the CeO2 thin film by simultaneous Sn metal and cerium oxide magnetron sputtering causes growth of Ce3+ rich films whilst pure cerium oxide sputtering provides stoichiometric CeO2 layers. Ce4+ → Ce3+ conversion is explained by a charge transfer from Sn atoms to unoccupied orbital Ce 4f0 of cerium oxide by forming Ce 4f1 state. XPS and SIMS revealed a formation of a new chemical Ce(Sn)+ state, which belongs to SnCeO2 species.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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