Surface Modification of CoO x Loaded BiVO 4 Photoanodes with Ultrathin p -Type NiO Layers for Improved Solar Water Oxidation
The University of Tokyo · Japan Chemical Industry Association · +3 more institutions
Abstract
Photoelectrochemical (PEC) devices that use semiconductors to absorb solar light for water splitting offer a promising way toward the future scalable production of renewable hydrogen fuels. However, the charge recombination in the photoanode/electrolyte (solid/liquid) junction is a major energy loss and hampers the PEC performance from being efficient. Here, we show that this problem is addressed by the conformal deposition of an ultrathin p-type NiO layer on the photoanode to create a buried p/n junction as well as to reduce the charge recombination at the surface trapping states for the enlarged surface band bending. Further, the in situ formed hydroxyl-rich and hydroxyl-ion-permeable NiOOH enables the dual…
Citation impact
- FWCI
- 22.34
- Percentile
- 100%
- References
- 41
Authors
18- MZMiao ZhongCorresponding
The University of Tokyo, Japan Chemical Industry Association
- THTakashi Hisatomi
The University of Tokyo, Japan Chemical Industry Association
- YKYongbo Kuang
The University of Tokyo, Japan Chemical Industry Association
- JZJiao Zhao
The University of Tokyo, Japan Chemical Industry Association
- MLMin Liu
Japan Chemical Industry Association, The University of Tokyo
Topics & keywords
- Non-blocking I/O
- Photocurrent
- Water splitting
- Chemistry
- Semiconductor
- Photoelectrochemical cell
- Hydrogen
- Chemical engineering
- Affordable and clean energy