Journal
APPLIED PHYSICS LETTERS
Volume 98, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3552711
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- Sandia National Laboratories
- United States Department of Energy [DE-ACO4-94AL85000]
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The fabrication and morphological, optical, and photoelectrochemical characterization of doped iron oxide films is presented. The complex index of refraction and absorption coefficient of polycrystalline films are determined through measurement and modeling of spectral transmission and reflection data using appropriate dispersion relations. Photoelectrochemical characterization for water photo-oxidation reveals that the conversion efficiencies of electrodes are strongly influenced by substrate temperature during their oblique-angle physical vapor deposition. These results are discussed in terms of the films' morphological features and the known optoelectronic limitations of iron oxide films for application in solar water splitting devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3552711]
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