Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 48, Pages 15235-15241Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13912c
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Funding
- DOE-EPSCoR [DE-FG02-07ER46375]
- Grosscurth fellowship
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The deposition of crystalline CuWO4 and WO3 layers on copper oxide nanowire arrays resulted in a five-fold improvement of the photocurrent density (similar to 1.7 mA cm(-2) at -0.1 V vs. RHE) over titania-coated copper oxide NW arrays. The deposition of WO3 or CuWO4 reduced the CuO phase impurities in Cu2O. The improvement in the phase purity of the nanowire arrays led to a considerable enhancement in the resulting photoactivity. These protective coatings have been shown to play a dual role of marginally extending the durability of the electrode and promoting charge separation.
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