Detection and switching of the oxidation state of Fe in a self-assembled monolayer
| Autor: | Yan Yeung Luk, J. L. McChesney, Fan Zheng, F. J. Himpsel, V. Perez-Dieste, Nicholas L. Abbott |
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| Rok vydání: | 2005 |
| Předmět: |
Valence (chemistry)
Extended X-ray absorption fine structure Chemistry Analytical chemistry Self-assembled monolayer Surfaces and Interfaces Condensed Matter Physics Photochemistry XANES Surfaces Coatings and Films chemistry.chemical_compound Absorption edge Ferrocene Oxidation state Monolayer Materials Chemistry |
| Zdroj: | Surface Science. 587:L191-L196 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/j.susc.2005.05.014 |
| Popis: | A self-assembled monolayer of ferrocene-capped alkanethiols is produced in two stable oxidation states of Fe (Fe2+ and Fe3+). These oxidation states are detected with sub-monolayer sensitivity by the fine structure of the Fe2p absorption edge. The native Fe2+ ferrocene layer is converted chemically to Fe3+, and the Fe3+ layer can be transformed back to Fe2+ or possibly Fe0 by irradiation with soft X-rays. The results have implications on switching mechanisms in molecular electronics. |
| Databáze: | OpenAIRE |
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