Solar Water Splitting: Enhancing Low‐Bias Performance of Hematite Photoanodes for Solar Water Splitting by Simultaneous Reduction of Bulk, Interface, and Surface Recombination Pathways (Adv. Energy Mater. 4/2016)

For solar water-splitting, hematite (α-Fe2O3) is considered as one of the most promising photo-anode materials with a theoretical solar-to-hydrogen efficiency of over ≈15%. However, the multiple electron/hole recombination pathways that occur in the bulk, interfaces, and surfaces largely limit its low-bias performance. In article number 1501840, Xiaolin Zheng and co-workers report a facile and rapid ‘Sol-flame’ approach to simultaneously reduce these recombinations for a hematite nanorods array photoanode, which leads to a greatly enhanced low-bias performance.