Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4788930
Keywords
-
Categories
Funding
- European Commission [227179]
Ask authors/readers for more resources
In this study, we explore resonance-enhanced optical absorption in Ta3N5 photoanodes for water splitting. By using a reflecting Pt back-contact and appropriate Ta3N5 film thickness, the resonance frequency can be tuned to energies just above the bandgap, where the optical absorption is normally weak. The resonance results in a significant improvement in the photoanode's incident photon-to-current efficiency. The Ta3N5 films are made by high-temperature nitridation of Ta2O5. The nitridation time is found to be critical, as extended nitridation result in the formation of nitrogen vacancies through thermal reduction. These insights give important clues for the development of efficient (oxy) nitride-based photoelectrodes. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4788930]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available