Band Bending in Mg-Colored and O-2-Activated Ultrathin MgO(001) Films - Université de Rennes Access content directly
Journal Articles Journal of Physical Chemistry C Year : 2017

Band Bending in Mg-Colored and O-2-Activated Ultrathin MgO(001) Films

Baptiste Hildebrand
Gabriel Delhaye
Sylvain Tricot
Bruno Lépine
Philippe Schieffer

Abstract

Ultrathin MgO films grown on Ag(001) have been investigated using X-ray and ultraviolet photoemission spectroscopies for oxide films successively exposed to Mg and O-2 flux. Studying work functions and layer-resolved Auger shifts allows us to keep track of band profiles from the oxide surface to the interface and reveal the charge-transfer mechanisms underlying the controlled creation of Mg-induced surface color centers and the catalytic enhancement of O-2 activation. Our results demonstrate that one can intimately probe the catalytic properties of metal-supported ultrathin oxide films by studying the electronic band alignment at interfaces.
Fichier principal
Vignette du fichier
Band bending in mg-colored_accepted.pdf (3.23 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-01502359 , version 1 (11-07-2017)

Identifiers

Cite

Thomas Jaouen, Baptiste Hildebrand, Philipp Aebi, Gabriel Delhaye, Sylvain Tricot, et al.. Band Bending in Mg-Colored and O-2-Activated Ultrathin MgO(001) Films. Journal of Physical Chemistry C, 2017, 121 (8), pp.4363-4367. ⟨10.1021/acs.jpcc.6b12541⟩. ⟨hal-01502359⟩
101 View
152 Download

Altmetric

Share

Gmail Facebook X LinkedIn More