Calvet, W. ; Murugasen, E. ; Klett, J. ; Kaiser, B. ; Jaegermann, W. ; Finger, F. ; Hoch, S. ; Blug, M. ; Busse, J. (2014)
Silicon based tandem cells: novel photocathodes for hydrogen production.
In: Physical Chemistry Chemical Physics, 16 (24)
doi: 10.1039/c3cp55198a
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A photovoltaic tandem cell made of amorphous silicon (a-Si) and microcrystalline silicon (μc-Si) was investigated as a photocathode for hydrogen evolution in a photoelectrochemical device. The electronic and electrochemical properties of the samples were characterized using X-ray photoemission spectroscopy (XPS) and cyclic voltammetry (CV), whereas the morphology of the surface in contact with the electrolyte was investigated by scanning electron microscopy (SEM). The electric efficiency of the tandem cell was determined to be 5.2% in a photoelectrochemical (PEC) setup in acidic solution which is only about half of the photovoltaic efficiency of the tandem cell. A significant improvement in efficiency was achieved with platinum as a catalyst which was deposited by physical vapour deposition (PVD) under ultra-high vacuum (UHV) conditions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Calvet, W. ; Murugasen, E. ; Klett, J. ; Kaiser, B. ; Jaegermann, W. ; Finger, F. ; Hoch, S. ; Blug, M. ; Busse, J. |
| Art des Eintrags: | Bibliographie |
| Titel: | Silicon based tandem cells: novel photocathodes for hydrogen production |
| Sprache: | Englisch |
| Publikationsjahr: | 28 Juni 2014 |
| Verlag: | RSC Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Chemistry Chemical Physics |
| Jahrgang/Volume einer Zeitschrift: | 16 |
| (Heft-)Nummer: | 24 |
| DOI: | 10.1039/c3cp55198a |
| Kurzbeschreibung (Abstract): | A photovoltaic tandem cell made of amorphous silicon (a-Si) and microcrystalline silicon (μc-Si) was investigated as a photocathode for hydrogen evolution in a photoelectrochemical device. The electronic and electrochemical properties of the samples were characterized using X-ray photoemission spectroscopy (XPS) and cyclic voltammetry (CV), whereas the morphology of the surface in contact with the electrolyte was investigated by scanning electron microscopy (SEM). The electric efficiency of the tandem cell was determined to be 5.2% in a photoelectrochemical (PEC) setup in acidic solution which is only about half of the photovoltaic efficiency of the tandem cell. A significant improvement in efficiency was achieved with platinum as a catalyst which was deposited by physical vapour deposition (PVD) under ultra-high vacuum (UHV) conditions. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 27 Feb 2015 13:07 |
| Letzte Änderung: | 29 Mär 2015 17:15 |
| PPN: | |
| Sponsoren: | Partial financial support of this project by the DFG cluster of excellence ‘‘Smart Interfaces’’ and by the DFG priority program SPP 1613, as well as co-funding by Evonik Industries AG (part- financed by the State of North Rhine Westphalia and co-financed by the European Union ‘‘Investing in our Future, European Regional Development Fund’’) is gratefully acknowledged. |
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