This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1016/j.cplett.2015.08.018 in citations.
Solar water splitting with earth-abundant materials using amorphous silicon photocathodes and Al/Ni contacts as hydrogen evolution catalyst
Solar water splitting with earth-abundant materials using amorphous silicon photocathodes and Al/Ni contacts as hydrogen evolution catalyst
An all earth-abundant and precious metal-free photocathode based on a low-temperature fabricated amorphous silicon tandem junction is demonstrated to be an efficient device for solar water splitting. With a particular designed Al/Ni layer stack as photocathode/electrolyte contact an onset potential...
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Personal Name(s): | Urbain, F. (Corresponding author) |
---|---|
Smirnov, V. / Becker, Jan Philipp / Rau, U. / Ziegler, J. / Yang, F. / Kaiser, B. / Jaegermann, W. / Hoch, S. / Blug, M. / Finger, F. | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Chemical physics letters, 638 (2015) S. 25-30 |
Imprint: |
Amsterdam [u.a.]
Elsevier
2015
|
DOI: |
10.1016/j.cplett.2015.08.018 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solar cells of the next generation Solar Fuels |
Publikationsportal JuSER |
An all earth-abundant and precious metal-free photocathode based on a low-temperature fabricated amorphous silicon tandem junction is demonstrated to be an efficient device for solar water splitting. With a particular designed Al/Ni layer stack as photocathode/electrolyte contact an onset potential for cathodic photocurrent of 1.7 V vs. RHE and a saturation photocurrent density of 7.2 mA/cm2 were achieved. For a high-cost alternative with a Ag/Pt layer stack an even higher photocathode performance is demonstrated. Above all we present an approach for a dedicated photovoltaic and electrochemical development for solar water splitting. |