Photoelectrochemical hydrogen production on InP nanowire arrays with molybdenum sulfide electrocatalysts

L. Gao, Y. Cui, J. Wang, A. Cavalli, A.J. Standing, T.T.T. Vu, M.A. Verheijen, J.E.M. Haverkort, E.P.A.M. Bakkers, P.H.L. Notten

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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Samenvatting

Semiconductor nanowire arrays are expected to be advantageous for photoelectrochemical energy conversion due to their reduced materials consumption. In addition, with the nanowire geometry the length scales for light absorption and carrier separation are decoupled, which should suppress bulk recombination. Here, we use vertically aligned p-type InP nanowire arrays, coated with noble-metal-free MoS3 nanoparticles, as the cathode for photoelectrochemical hydrogen production from water. We demonstrate a photocathode efficiency of 6.4% under Air Mass 1.5G illumination with only 3% of the surface area covered by nanowires.
Originele taal-2Engels
Pagina's (van-tot)3715-3719
Aantal pagina's5
TijdschriftNano Letters
Volume14
Nummer van het tijdschrift7
DOI's
StatusGepubliceerd - 2014

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