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Issue 8, 2016
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Remarkable stability of unmodified GaAs photocathodes during hydrogen evolution in acidic electrolyte

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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.

Graphical abstract: Remarkable stability of unmodified GaAs photocathodes during hydrogen evolution in acidic electrolyte

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Publication details

The article was received on 24 Sep 2015, accepted on 20 Nov 2015 and first published on 25 Nov 2015


Article type: Communication
DOI: 10.1039/C5TA07648J
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2016,4, 2831-2836
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    Remarkable stability of unmodified GaAs photocathodes during hydrogen evolution in acidic electrolyte

    J. L. Young, K. X. Steirer, M. J. Dzara, J. A. Turner and T. G. Deutsch, J. Mater. Chem. A, 2016, 4, 2831
    DOI: 10.1039/C5TA07648J

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