Journal Article

FZJ-2016-02427

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Band engineering for efficient catalyst-substrate coupling for photoelectrochemical water splitting

Klett, J. (Corresponding author) ; Ziegler, J. ; Radetinac, A. ; Kaiser, B. ; Schäfer, R. ; Jaegermann, W. ; Urbain, F.FZJ* ; Becker, J. P.FZJ* ; Smirnov, V.FZJ* ; Finger, F.FZJ*

2016
RSC Publ. Cambridge

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Please use a persistent id in citations: doi:10.1039/C5CP06230F

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.

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Contributing Institute(s):

1. Photovoltaik (IEK-5)

Research Program(s):

1. 126 - Solar Fuels (POF3-126) (POF3-126)
2. 121 - Solar cells of the next generation (POF3-121) (POF3-121)
3. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2016

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Database coverage:
; Allianz-Lizenz / DFG ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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