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Title: A synchrotron-based photoemission study of the MoO3Co interface
Authors: Wang, Y.-Z.
Yang, M. 
Qi, D.-C. 
Chen, S. 
Chen, W. 
Wee, A.T.S. 
Gao, X.-Y. 
Issue Date: 21-Jan-2011
Citation: Wang, Y.-Z., Yang, M., Qi, D.-C., Chen, S., Chen, W., Wee, A.T.S., Gao, X.-Y. (2011-01-21). A synchrotron-based photoemission study of the MoO3Co interface. Journal of Chemical Physics 134 (3) : -. ScholarBank@NUS Repository.
Abstract: The electronic structures at the MoO3Co interface were investigated using synchrotron-based ultraviolet and x-ray photoelectron spectroscopy. It was found that interfacial chemical reactions lead to the reduction of Mo oxidation states and the formation of Co-O bonds. These interfacial chemical reactions also induce a large interface dipole, which significantly increases the work function of the cobalt substrate. In addition, two interface states located at 1.0 and 2.0 eV below the Fermi level are identified. These two states overlap at film thickness of between 2-4 nm, which suggests the MoO3 intermediate layer may facilitate ohmic charge transport. © 2011 American Institute of Physics.
Source Title: Journal of Chemical Physics
ISSN: 00219606
DOI: 10.1063/1.3546034
Appears in Collections:Staff Publications

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