Journal
CHEMSUSCHEM
Volume 9, Issue 13, Pages 1727-1735Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600457
Keywords
atomic layer deposition; bismuth; energy conversion; vanadates; water splitting
Funding
- University of South Carolina
- NSF [DMR-1428620]
Ask authors/readers for more resources
The fabrication of porous nanocomposites is key to the advancement of energy conversion and storage devices that interface with electrolytes. Bismuth vanadate, BiVO4, is a promising oxide for solar water splitting where the controlled fabrication of BiVO4 layers within porous, conducting scaffolds has remained a challenge. Here, the atomic layer deposition of bismuth vanadates is reported from BiPh3, vanadium(V) oxytriisopropoxide, and water. The resulting films have tunable stoichiometry and may be crystallized to form the photoactive scheelite structure of BiVO4. A selective etching process was used with vanadium-rich depositions to enable the synthesis of phase-pure BiVO4 after spinodal decomposition. BiVO4 thin films were measured for photoelectrochemical performance under AM1.5 illumination. The average photocurrents were 1.17mAcm(-2) at 1.23V versus the reversible hydrogen electrode using a hole-scavenging sulfite electrolyte. The capability to deposit conformal bismuth vanadates will enable a new generation of nanocomposite architectures for solar water splitting.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available