Electrochemical Reduction of Undoped and Cobalt-Doped BiFeO3 Induced by Water Exposure: Quantitative Determination of Reduction Potentials and Defect Energy Levels Using Photoelectron Spectroscopy

The interaction of BiFeO3 and Co-doped BiFeO3 thin-film surfaces with water vapor is examined using photoelectron spectroscopy. Water exposure results in an upward shift of the Fermi energy, which is limited by the reduction of Bi and Fe in undoped BiFeO3 and by the reduction of Co in oxidized Co-do...

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Veröffentlicht in:	The journal of physical chemistry letters 2019-11, Vol.10 (22), p.7071-7076
Hauptverfasser:	Bein, Nicole S, Machado, Pamela, Coll, Mariona, Chen, Feng, Makarovic, Maja, Rojac, Tadej, Klein, Andreas
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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