10-fold enhancement in light-driven water splitting using niobium oxynitride microcone array films

Result date: 01/01/2016
Author: B. S. Shaheen,
Institute: Energy Materials Lab (EML), School of Sciences and Engineering, The American University in Cairo, Egypt
Publication: Sol. Energy Mater. Sol. Cells,
Instrument: SPHERA
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.