Tunnel barrier photoelectrodes for solar water splitting

Lian Guo; David Hung; Weigang Wang; Weifeng Shen; Leyi Zhu; Chia Ling Chien; Peter C. Searson

doi:10.1063/1.3479055

Tunnel barrier photoelectrodes for solar water splitting

Lian Guo, David Hung, Weigang Wang, Weifeng Shen, Leyi Zhu, Chia Ling Chien, Peter C. Searson

Physics

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Tunnel barrier photoelectrodes, with a thin inorganic tunnel barrier layer that isolates the semiconductor electrode from the electrolyte while allowing current flow across the interface, are a possible solution to the problem of photocorrosion in solar water splitting. In this approach, selection of the semiconductor for the light absorber is decoupled from selection of the tunnel barrier material that provides chemical stability. Here we demonstrate a proof-of-principle of this approach with TiO₂/MgO tunnel barrier photoelectrodes.

Original language	English (US)
Article number	063111
Journal	Applied Physics Letters
Volume	97
Issue number	6
DOIs	https://doi.org/10.1063/1.3479055
State	Published - Aug 9 2010

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3479055

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title = "Tunnel barrier photoelectrodes for solar water splitting",

abstract = "Tunnel barrier photoelectrodes, with a thin inorganic tunnel barrier layer that isolates the semiconductor electrode from the electrolyte while allowing current flow across the interface, are a possible solution to the problem of photocorrosion in solar water splitting. In this approach, selection of the semiconductor for the light absorber is decoupled from selection of the tunnel barrier material that provides chemical stability. Here we demonstrate a proof-of-principle of this approach with TiO2/MgO tunnel barrier photoelectrodes.",

author = "Lian Guo and David Hung and Weigang Wang and Weifeng Shen and Leyi Zhu and Chien, {Chia Ling} and Searson, {Peter C.}",

note = "Funding Information: This work was supported by NSF (Grant No. CHE-0905869) and the JHU MRSEC (NSF under Grant No. DMR05–20491). The authors thank Shane Ardo for assistance with optical characterization.",

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doi = "10.1063/1.3479055",

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T1 - Tunnel barrier photoelectrodes for solar water splitting

AU - Guo, Lian

AU - Hung, David

AU - Wang, Weigang

AU - Shen, Weifeng

AU - Zhu, Leyi

AU - Chien, Chia Ling

AU - Searson, Peter C.

N1 - Funding Information: This work was supported by NSF (Grant No. CHE-0905869) and the JHU MRSEC (NSF under Grant No. DMR05–20491). The authors thank Shane Ardo for assistance with optical characterization.

PY - 2010/8/9

Y1 - 2010/8/9

N2 - Tunnel barrier photoelectrodes, with a thin inorganic tunnel barrier layer that isolates the semiconductor electrode from the electrolyte while allowing current flow across the interface, are a possible solution to the problem of photocorrosion in solar water splitting. In this approach, selection of the semiconductor for the light absorber is decoupled from selection of the tunnel barrier material that provides chemical stability. Here we demonstrate a proof-of-principle of this approach with TiO2/MgO tunnel barrier photoelectrodes.

AB - Tunnel barrier photoelectrodes, with a thin inorganic tunnel barrier layer that isolates the semiconductor electrode from the electrolyte while allowing current flow across the interface, are a possible solution to the problem of photocorrosion in solar water splitting. In this approach, selection of the semiconductor for the light absorber is decoupled from selection of the tunnel barrier material that provides chemical stability. Here we demonstrate a proof-of-principle of this approach with TiO2/MgO tunnel barrier photoelectrodes.

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Tunnel barrier photoelectrodes for solar water splitting

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