10-fold enhancement in light-driven water splitting using niobium oxynitride microcone array films
10-fold enhancement in light-driven water splitting using niobium oxynitride microcone array films
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Date
2016-07-01
Authors
Shaheen, Basamat S.
Hafez, Ahmed M.
Murali, Banavoth
Kirmani, Ahmad R.
Amassian, Aram
Mohammed, Omar F.
Allam, Nageh K.
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Abstract
We demonstrate, for the first time, the synthesis of highly ordered niobium oxynitride microcones as an attractive class of materials for visible-light-driven water splitting. As revealed by the ultraviolet photoelectron spectroscopy (UPS), photoelectrochemical and transient photocurrent measurements, the microcones showed enhanced performance (~1000% compared to mesoporous niobium oxide) as photoanodes for water splitting with remarkable stability and visible light activity.
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Keywords
Anodization,
Microcones,
Oxynitride,
Photo-electrodes,
Water splitting
Citation
Solar Energy Materials and Solar Cells. v.151