Publications

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
Basamat S. Shaheen, Ahmed M. Hafez, Banavoth Murali, Ahmad R. Kirmani, Aram Amassian, Omar F. Mohammed, Nageh K. Allam
Solar Energy Materials and Solar Cells, 151, 149-153, (2016)
Basamat S. Shaheen, Ahmed M. Hafez, Banavoth Murali, Ahmad R. Kirmani, Aram Amassian, Omar F. Mohammed, Nageh K. Allam
Oxynitride; Water splitting; Anodization; Photo-electrodes; Microcones
2016



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.

DOI: 10.1016/j.solmat.2016.03.011