Remarkable Stability of Unmodified GaAs Photocathodes during Hydrogen Evolution in Acidic Electrolyte

Todd Deutsch; James Young; John Turner; Michael Dzara; Kenneth Steirer

doi:10.1039/c5ta07648j

Remarkable Stability of Unmodified GaAs Photocathodes during Hydrogen Evolution in Acidic Electrolyte

Todd Deutsch, James Young, John Turner, Michael Dzara, Kenneth Steirer

Rochester Institute of Technology

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

31 Scopus Citations

Abstract

We report on the remarkable stability of unmodified, epitaxially grown GaAs photocathodes during hydrogen evolution at-15 mA cm^-2 in 3 M sulfuric acid electrolyte. Contrary to the perception regarding instability of III-V photoelectrodes, results here show virtually no performance degradation and minimal etching after 120 hours.

Original language	American English
Pages (from-to)	2831-2836
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	4
Issue number	8
DOIs	https://doi.org/10.1039/c5ta07648j https://doi.org/10.1039/C5TA07648J
State	Published - 2016

Bibliographical note

Publisher Copyright:
© 2016 The Royal Society of Chemistry.

NREL Publication Number

NREL/JA-5900-65160

Keywords

photoelectrochemical water splitting
semiconductor photocorrosion

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title = "Remarkable Stability of Unmodified GaAs Photocathodes during Hydrogen Evolution in Acidic Electrolyte",

abstract = "We report on the remarkable stability of unmodified, epitaxially grown GaAs photocathodes during hydrogen evolution at-15 mA cm-2 in 3 M sulfuric acid electrolyte. Contrary to the perception regarding instability of III-V photoelectrodes, results here show virtually no performance degradation and minimal etching after 120 hours.",

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author = "Todd Deutsch and James Young and John Turner and Michael Dzara and Kenneth Steirer",

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doi = "10.1039/c5ta07648j",

language = "American English",

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AU - Deutsch, Todd

AU - Young, James

AU - Turner, John

AU - Dzara, Michael

AU - Steirer, Kenneth

PY - 2016

Y1 - 2016

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AB - We report on the remarkable stability of unmodified, epitaxially grown GaAs photocathodes during hydrogen evolution at-15 mA cm-2 in 3 M sulfuric acid electrolyte. Contrary to the perception regarding instability of III-V photoelectrodes, results here show virtually no performance degradation and minimal etching after 120 hours.

KW - photoelectrochemical water splitting

KW - semiconductor photocorrosion

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U2 - 10.1039/c5ta07648j

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JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

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ER -

Remarkable Stability of Unmodified GaAs Photocathodes during Hydrogen Evolution in Acidic Electrolyte

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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