Klett, Joachim ; Ziegler, Jürgen ; Radetinac, Aldin ; Kaiser, Bernhard ; Schäfer, Rolf ; Jaegermann, Wolfram ; Urbain, Félix ; Becker, Jan-Philipp ; Smirnov, Vladimir ; Finger, Friedhelm (2016)
Band engineering for efficient catalyst-substrate coupling for photoelectrochemical water splitting.
In: Phys. Chem. Chem. Phys., 18 (16)
doi: 10.1039/C5CP06230F
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
To achieve an overall efficient solar water splitting device, not only the efficiencies of photo-converter and catalyst are decisive, but also their appropriate coupling must be considered. In this report we explore the origin of a voltage loss occurring at the interface between a thin film amorphous silicon tandem cell and the TiO2 corrosion protection layer by means of XPS. We find that the overall device can be disassembled into its primary constituents and that they can be analyzed separately, giving insight into the device structure as a whole. Thus, a series of model experiments were conducted, each representing a part of the complete device. We finally arrive at the conclusion, that the formation of a SiO2 interfacial layer between the TiO2 protection layer and the silicon cell gives rise to the voltage loss observed for the whole device.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Klett, Joachim ; Ziegler, Jürgen ; Radetinac, Aldin ; Kaiser, Bernhard ; Schäfer, Rolf ; Jaegermann, Wolfram ; Urbain, Félix ; Becker, Jan-Philipp ; Smirnov, Vladimir ; Finger, Friedhelm |
| Art des Eintrags: | Bibliographie |
| Titel: | Band engineering for efficient catalyst-substrate coupling for photoelectrochemical water splitting |
| Sprache: | Englisch |
| Publikationsjahr: | 20 Januar 2016 |
| Verlag: | Royal Society of Chemistry |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Phys. Chem. Chem. Phys. |
| Jahrgang/Volume einer Zeitschrift: | 18 |
| (Heft-)Nummer: | 16 |
| DOI: | 10.1039/C5CP06230F |
| Kurzbeschreibung (Abstract): | To achieve an overall efficient solar water splitting device, not only the efficiencies of photo-converter and catalyst are decisive, but also their appropriate coupling must be considered. In this report we explore the origin of a voltage loss occurring at the interface between a thin film amorphous silicon tandem cell and the TiO2 corrosion protection layer by means of XPS. We find that the overall device can be disassembled into its primary constituents and that they can be analyzed separately, giving insight into the device structure as a whole. Thus, a series of model experiments were conducted, each representing a part of the complete device. We finally arrive at the conclusion, that the formation of a SiO2 interfacial layer between the TiO2 protection layer and the silicon cell gives rise to the voltage loss observed for the whole device. |
| Zusätzliche Informationen: | This article is part of themed collection: Bunsentagung 2016: Basic Mechanisms in Energy Conversion |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften 07 Fachbereich Chemie |
| Hinterlegungsdatum: | 26 Apr 2016 09:22 |
| Letzte Änderung: | 26 Apr 2016 09:22 |
| PPN: | |
| Sponsoren: | Financial support of this project by the DFG priority program SPP 1613 as well as by the DFG Excellence Initiative, Darmstadt Graduate School of Energy Science and Engineering (GSC 1070) is gratefully acknowledged., A part of this work was financed by Evonik Industries AG, partially funded by the German Federal Ministry of Education and Research within the Project SusHy. |
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