@article{df5ab5933cc24fa1b1867be99308cc7f,
title = "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.",
author = "L. Kornblum and Fenning, {D. P.} and J. Faucher and J. Hwang and A. Boni and Han, {M. G.} and Morales-Acosta, {M. D.} and Y. Zhu and Altman, {E. I.} and Lee, {M. L.} and Ahn, {C. H.} and Walker, {F. J.} and Y. Shao-Horn",
note = "Funding Information: The authors (CHA, LK, MDAM, and FJW) acknowledge support from NSF DMR1309868 and EIA acknowledges support from MRSEC DMR-1119826 (CRISP). Support for MIT research is acknowledged from the MIT Energy Initiative seed fund and the Cooperative Agreement between the Masdar Institute of Science and Technology, Abu Dhabi, UAE and MIT, Reference Number 02/MI/MIT/CP/11/07633/GEN/G/00. DPF acknowledges the support of the MIT/Battelle postdoctoral program. JF and MLL acknowledge support from ARPA-E Award DE-AR0000508. The work at Brookhaven National Laboratory was supported by the Materials Science and Engineering Divisions, Office of Basic Energy Sciences, of the US Department of Energy, under Contract No. DE-AC02-98CH10886. The authors are grateful to Nir Pour for his expertise in preparing Fig. 1. The authors also thank Dr Ifan E. L. Stephens for discussions and assistance in measuring Pt wire, and Dr B. R. Lukanov for his contributions to the early stages of this project. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2017.",
year = "2017",
month = jan,
doi = "10.1039/c6ee03170f",
language = "English (US)",
volume = "10",
pages = "377--382",
journal = "Energy and Environmental Science",
issn = "1754-5692",
publisher = "Royal Society of Chemistry",
number = "1",
}