Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5359804 | Applied Surface Science | 2009 | 5 Pages |
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+ â 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
Authors
Karel MaÅ¡ek, Michal Václavů, Petr Bábor, VladimÃr MatolÃn,