Solar hydrogen production using epitaxial SrTiO<sub>3</sub> on a GaAs photovoltaic [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 377-382 : digital, PDF file
- Additional Creators:
- Brookhaven National Laboratory, United States. Department of Energy, United States. Department of Energy. Office of Basic Energy Sciences, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- 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.
- Published through SciTech Connect., 12/22/2016., "bnl--113819-2017-ja", "KC0201010", Energy & Environmental Science 10 1 ISSN 1754-5692 AM, and L. Kornblum; D. P. Fenning; J. Faucher; J. Hwang; A. Boni; M. G. Han; M. D. Morales-Acosta; Y. Zhu; E. I. Altman; M. L. Lee; C. H. Ahn; F. J. Walker; Y. Shao-Horn.
- Funding Information:
- SC0012704, AR0000508, AC02-98CH10886, DMR-1309868, and MA015MACA
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