Photoelectrochemical Device Designs toward Practical Solar Water Splitting: A Review on the Recent Progress of BiVO4 and BiFeO3 Photoanodes
Abstract
:Featured Application
Abstract
1. Introduction
- Absorption of solar radiation by the photoelectrode, followed by charge carrier generation as a result of photoexcitation of electrons in the valence band of photoelectrode;
- Separation and transport of charge carriers to the electrode surface by the internal or external bias applied through the circuit;
- Oxidation of water at the anode by the photoexcited holes. Simultaneously, transport of H+ ions from the anode to the cathode, and transport of the photoexcited electrons to the cathode through an external circuit, followed by the reduction of H+ ions into hydrogen gas at the cathode by the photoexcited electrons.
2. Strategies and Device Designs for Efficient PEC Water Splitting
2.1. Absorption of Solar Radiation
2.2. Separation and Transport of Charge Carrier
2.3. Kinetics of Water Redox Reactions
3. Challenging PEC Device Designs toward Practical Solar Water Splitting
3.1. Application of Facet Engineering in PEC Water Splitting
3.2. Development of Ferroelectric Coupled PEC Device
4. Conclusions and Future Outlook
Author Contributions
Funding
Conflicts of Interest
References
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Jeong, S.Y.; Song, J.; Lee, S. Photoelectrochemical Device Designs toward Practical Solar Water Splitting: A Review on the Recent Progress of BiVO4 and BiFeO3 Photoanodes. Appl. Sci. 2018, 8, 1388. https://doi.org/10.3390/app8081388
Jeong SY, Song J, Lee S. Photoelectrochemical Device Designs toward Practical Solar Water Splitting: A Review on the Recent Progress of BiVO4 and BiFeO3 Photoanodes. Applied Sciences. 2018; 8(8):1388. https://doi.org/10.3390/app8081388
Chicago/Turabian StyleJeong, Sang Yun, Jaesun Song, and Sanghan Lee. 2018. "Photoelectrochemical Device Designs toward Practical Solar Water Splitting: A Review on the Recent Progress of BiVO4 and BiFeO3 Photoanodes" Applied Sciences 8, no. 8: 1388. https://doi.org/10.3390/app8081388