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Nanomaterials 2017, 7(2), 33; doi:10.3390/nano7020033

{Ni4O4} Cluster Complex to Enhance the Reductive Photocurrent Response on Silicon Nanowire Photocathodes

1
Future Industries Institute, University of South Australia, Mawson Lakes, 5095 SA, Australia
2
Department of Chemistry, University College London, London WC1H 0AJ, UK
3
MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand
*
Author to whom correspondence should be addressed.
Academic Editor: Richard Tilley
Received: 21 December 2016 / Revised: 16 January 2017 / Accepted: 24 January 2017 / Published: 6 February 2017
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Abstract

Metal organic {Ni4O4} clusters, known oxidation catalysts, have been shown to provide a valuable route in increasing the photocurrent response on silicon nanowire (SiNW) photocathodes. {Ni4O4} clusters have been paired with SiNWs to form a new photocathode composite for water splitting. Under AM1.5 conditions, the combination of {Ni4O4} clusters with SiNWs gave a current density of −16 mA/cm2, which corresponds to an increase in current density of 60% when compared to bare SiNWs. The composite electrode was fully characterised and shown to be an efficient and stable photocathode for water splitting. View Full-Text
Keywords: photocathode; nickel oxide; nanowires; water splitting photocathode; nickel oxide; nanowires; water splitting
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mange, Y.J.; Chandrasekaran, S.; Hollingsworth, N.; Voelcker, N.H.; Parkin, I.P.; Nann, T.; Macdonald, T.J. {Ni4O4} Cluster Complex to Enhance the Reductive Photocurrent Response on Silicon Nanowire Photocathodes. Nanomaterials 2017, 7, 33.

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