Issue 8, 2016

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.

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

Supplementary files

Article information

Article type
Communication
Submitted
24 sen 2015
Accepted
20 noy 2015
First published
25 noy 2015

J. Mater. Chem. A, 2016,4, 2831-2836

Author version available

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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