Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic
Abstract
We demonstrate an oxide-stabilized III–V photoelectrode architecture for solar fuel production from water in neutral pH. For this tunable architecture we demonstrate 100% Faradaic efficiency for hydrogen evolution, and incident photon-to-current efficiencies (IPCE) exceeding 50%. High IPCE for hydrogen evolution is a consequence of the low-loss interface achieved via epitaxial growth of a thin oxide on a GaAs solar cell. Developing optimal energetic alignment across the interfaces of the photoelectrode using well-established III–V technology is key to obtaining high performance. This advance constitutes a critical milestone towards efficient, unassisted fuel production from solar energy.
- Authors:
-
- Yale Univ., New Haven, CT (United States). Dept. of Applied Physics and Center for Research on Interface Structures and Phenomena
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering; University of California San Diego, La Jolla, CA (United States). Dept. of Nanoengineering
- Yale Univ., New Haven, CT (United States). Dept. of Electrical Engineering
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering; University of Bologna (Italy). Dept. of Chemistry
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
- Yale Univ., New Haven, CT (United States). Center for Research on Interface Structures and Phenomena and Dept. of Chemical Engineering and Environmental Engineering
- Yale Univ., New Haven, CT (United States). Dept. of Electrical Engineering; University of Illinois at Urbana-Champaign, Urbana, IL (United States). Department of Electrical and Computer Engineering
- Yale Univ., New Haven, CT (United States). Dept. of Applied Physics, Center for Research on Interface Structures and Phenomena and Dept. of Mechanical Engineering & Materials Science
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering and Dept. of Materials Science and Engineering
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1358013
- Report Number(s):
- BNL-113819-2017-JA
Journal ID: ISSN 1754-5692; R&D Project: MA015MACA; KC0201010
- Grant/Contract Number:
- SC0012704; AR0000508; AC02-98CH10886; DMR-1309868
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Energy & Environmental Science
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 1754-5692
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 08 HYDROGEN
Citation Formats
Kornblum, L., Fenning, D. P., Faucher, J., Hwang, J., Boni, A., Han, M. G., Morales-Acosta, M. D., Zhu, Y., Altman, E. I., Lee, M. L., Ahn, C. H., Walker, F. J., and Shao-Horn, Y. Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic. United States: N. p., 2016.
Web. doi:10.1039/c6ee03170f.
Kornblum, L., Fenning, D. P., Faucher, J., Hwang, J., Boni, A., Han, M. G., Morales-Acosta, M. D., Zhu, Y., Altman, E. I., Lee, M. L., Ahn, C. H., Walker, F. J., & Shao-Horn, Y. Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic. United States. https://doi.org/10.1039/c6ee03170f
Kornblum, L., Fenning, D. P., Faucher, J., Hwang, J., Boni, A., Han, M. G., Morales-Acosta, M. D., Zhu, Y., Altman, E. I., Lee, M. L., Ahn, C. H., Walker, F. J., and Shao-Horn, Y. Thu .
"Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic". United States. https://doi.org/10.1039/c6ee03170f. https://www.osti.gov/servlets/purl/1358013.
@article{osti_1358013,
title = {Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic},
author = {Kornblum, L. and Fenning, D. P. and Faucher, J. and Hwang, J. and Boni, A. and Han, M. G. and Morales-Acosta, M. D. and Zhu, Y. and Altman, E. I. and Lee, M. L. and Ahn, C. H. and Walker, F. J. and Shao-Horn, Y.},
abstractNote = {We demonstrate an oxide-stabilized III–V photoelectrode architecture for solar fuel production from water in neutral pH. For this tunable architecture we demonstrate 100% Faradaic efficiency for hydrogen evolution, and incident photon-to-current efficiencies (IPCE) exceeding 50%. High IPCE for hydrogen evolution is a consequence of the low-loss interface achieved via epitaxial growth of a thin oxide on a GaAs solar cell. Developing optimal energetic alignment across the interfaces of the photoelectrode using well-established III–V technology is key to obtaining high performance. This advance constitutes a critical milestone towards efficient, unassisted fuel production from solar energy.},
doi = {10.1039/c6ee03170f},
journal = {Energy & Environmental Science},
number = 1,
volume = 10,
place = {United States},
year = {Thu Dec 22 00:00:00 EST 2016},
month = {Thu Dec 22 00:00:00 EST 2016}
}
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