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DOI:10.1021/ACS.CHEMMATER.6B01994 - Corpus ID: 99054843
@article{Cooper2016RoleOH, title={Role of Hydrogen in Defining the n-Type Character of BiVO4 Photoanodes}, author={Jason K. Cooper and Soren B. Scott and Yichuan Ling and Jinhui Yang and Si-jia Hao and Yat Li and Francesca Maria Toma and Martin Stutzmann and K V Lakshmi and Ian D. Sharp}, journal={Chemistry of Materials}, year={2016}, volume={28}, pages={5761-5771}, url={https://api.semanticscholar.org/CorpusID:99054843}}- J. Cooper, S. Scott, I. Sharp
- Published 3 August 2016
- Materials Science, Physics, Chemistry
- Chemistry of Materials
The roles of hydrogen impurity and oxygen vacancy defects on defining the conductivity, and hence photoelectrochemical (PEC) performance characteristics, of monoclinic scheelite bismuth vanadate (BiVO4) are investigated using a combination of experiment and theory. We find that elemental hydrogen is present as an impurity in as-synthesized BiVO4 and that increasing its concentration by annealing in H2 at temperatures up to 290 °C leads to near-complete elimination of majority carrier transport…
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101 Citations
- H. SeoY. PingG. Galli
- 2018
Materials Science, Physics
Chemistry of Materials
Bismuth vanadate is a promising photoanode for solar-to-fuel photocatalytic applications, and it has been extensively studied in recent years. However, the microscopic mechanism underlying the…
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- Wennie WangP. J. Strohbeen G. Galli
- 2020
Materials Science, Physics
Chemistry of Materials
Bismuth vanadate(BiVO4) is a widely studied oxide insolar water splitting, known for its ease of synthesis, high chargeextraction yields, and advantageous band alignment with water. Wepresent a…
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- Xin ZhaoJun HuXin YaoShi ChenZhong Chen
- 2018
Materials Science, Environmental Science
ACS Applied Energy Materials
Most oxide semiconductor photoanode materials for water splitting are synthesized in ambient environment. Oxygen vacancy exists in these samples making them intrinsically n-type at the as-synthesized…
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- F. HegnerD. ForrerJ. Galán‐MascarósN. LópezA. Selloni
- 2019
Materials Science, Chemistry
The journal of physical chemistry letters
Using first principles calculations, it is shown that oxygen vacancies in BiVO4 have two distinguishable geometric configurations characterized by either undercoordinated, reduced V(IV)O3 and Bi(II)O7 subunits or a V( IV)-O-V(IV)/Vbridge (split vacancy), quenching the oxygen vacant site.
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- G. GovindarajuJ. MorbecG. GalliKyoung-Shin Choi
- 2018
Chemistry, Environmental Science
The Journal of Physical Chemistry C
N-type bismuth vanadate (BiVO4) has emerged as one of the most promising photoanodes for use in water-splitting photoelectrochemical cells in recent years. However, its photoelectrochemical…
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- PDF
- Marlene LamersS. FiechterD. FriedrichF. AbdiR. Krol
- 2018
Materials Science, Environmental Science
Metal oxide photoelectrodes typically suffer from poor carrier transport properties and extensive carrier recombination, which is caused by the presence of intrinsic or extrinsic defects in the…
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- E. MarinhoCedric Rocha Leão
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Materials Science, Chemistry
Physical chemistry chemical physics : PCCP
It is verified that the lowest energy configuration for MoV pairwise defects in BiVO4 occurs on nearest-neighbor sites, despite the higher electrostatic repulsion and larger strain on the crystal lattice, suggesting a favorable hybridization between the atomic orbitals of the impurities.
- Cheng ChengQiu FangS. Fernandez-AlbertiR. Long
- 2021
Chemistry, Materials Science
The journal of physical chemistry letters
The mechanism of the detrimental role of OV is revealed and valuable insights are provided for improving the performance of the BiVO4 photoanode by ionizing the oxygen vacancy and restoring the bandgap to its value in pristine Bi VO4.
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- H. CalderonF. Toma E. Neri
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Materials Science
Microscopy and Microanalysis
BiVO4 (BVO) is a promising material for photoelectro-chemical water splitting by using visible light. It is formed by abundant and nontoxic elements i.e. low cost and environmentally friendly. BVO…
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- Jung Kyu KimYoonjun Cho J. Park
- 2018
Chemistry, Environmental Science
ChemSusChem
A rapid solution process is reported that is able to form a disordered layer of a few nanometers thick on the surface of BiVO4 nanoparticles using a specific solution with a controllable reducing power, which results in enhanced photoactivity.
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