001     200800
005     20240708133711.0
037 _ _ |a FZJ-2015-03193
100 1 _ |a Urbain, Felix
|0 P:(DE-Juel1)156469
|b 0
|e Corresponding Author
111 2 _ |a EMRS Spring Conference
|c Lille
|d 2015-05-11 - 2015-05-15
|w France
245 _ _ |a Efficient multijunction thin film silicon based photocathodes for hydrogen production via photoelectrochemical water splitting
260 _ _ |c 2015
336 7 _ |a Conference Presentation
|b conf
|m conf
|0 PUB:(DE-HGF)6
|s 1432017211_25976
|2 PUB:(DE-HGF)
|x Other
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a LECTURE_SPEECH
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336 7 _ |a conferenceObject
|2 DRIVER
336 7 _ |a INPROCEEDINGS
|2 BibTeX
520 _ _ |a We report on the application of multijunction thin film silicon based photocathodes for solar water splitting. Multijunction solar cells allow for high photovoltages, well above the thermodynamically required 1.23 V to drive the oxygen and hydrogen evolution reactions. However, the use of such solar cells in integrated water splitting devices imposes considerable challenges, in particular at the solar cell/electrolyte interface concerning catalysis and chemical stability. In this regard, we integrate different metal layers at the solar cell/electrolyte interface and evaluate their catalytic and stability properties.The performance of the photocathodes, with respect to photocurrent densities and onset potentials for cathodic current were evaluated in a 3-electrode configuration. By using tandem, triple and quadruple junction photocathodes, the onset potentials can be tuned between 1.3 V and 2.5 V vs. RHE. We demonstrate, that the high excess-voltage allows for the substitution of precious metal catalysts, like platinum, by more abundant materials, like nickel, without impairing the device performance. The ability to provide self-contained solar water splitting over a prolonged period of time is demonstrated in a 2-electrode configuration with an impressive solar-to-hydrogen efficiency of 8.6 %.Modeling the current-voltage characteristics of the water splitting device shows good agreement with experimental results and allows for an analysis of the relevant system losses.
536 _ _ |a 126 - Solar Fuels (POF3-126)
|0 G:(DE-HGF)POF3-126
|c POF3-126
|x 0
|f POF III
536 _ _ |a 121 - Solar cells of the next generation (POF3-121)
|0 G:(DE-HGF)POF3-121
|c POF3-121
|x 1
|f POF III
536 _ _ |0 G:(DE-Juel1)HITEC-20170406
|x 2
|c HITEC-20170406
|a HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406)
700 1 _ |a Smirnov, Vladimir
|0 P:(DE-Juel1)130297
|b 1
700 1 _ |a Becker, Jan Philipp
|0 P:(DE-Juel1)142337
|b 2
|u fzj
700 1 _ |a Rau, Uwe
|0 P:(DE-Juel1)143905
|b 3
700 1 _ |a Ziegler, Jürgen
|0 P:(DE-HGF)0
|b 4
700 1 _ |a Yang, Florent
|0 P:(DE-HGF)0
|b 5
700 1 _ |a Kaiser, Bernhard
|0 P:(DE-HGF)0
|b 6
700 1 _ |a Jaegermann, Wolfram
|0 P:(DE-HGF)0
|b 7
700 1 _ |a Finger, Friedhelm
|0 P:(DE-Juel1)130238
|b 8
773 _ _ |y 2015
909 C O |o oai:juser.fz-juelich.de:200800
|p VDB
910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)156469
910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
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910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
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|6 P:(DE-Juel1)142337
910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
|b 3
|6 P:(DE-Juel1)143905
910 1 _ |a Forschungszentrum Jülich GmbH
|0 I:(DE-588b)5008462-8
|k FZJ
|b 8
|6 P:(DE-Juel1)130238
913 0 _ |a DE-HGF
|b Energie
|l Erneuerbare Energien
|1 G:(DE-HGF)POF2-110
|0 G:(DE-HGF)POF2-111
|2 G:(DE-HGF)POF2-100
|v Thin Film Photovoltaics
|x 0
913 1 _ |a DE-HGF
|l Erneuerbare Energien
|1 G:(DE-HGF)POF3-120
|0 G:(DE-HGF)POF3-126
|2 G:(DE-HGF)POF3-100
|v Solar Fuels
|x 0
|4 G:(DE-HGF)POF
|3 G:(DE-HGF)POF3
|b Energie
913 1 _ |a DE-HGF
|l Erneuerbare Energien
|1 G:(DE-HGF)POF3-120
|0 G:(DE-HGF)POF3-121
|2 G:(DE-HGF)POF3-100
|v Solar cells of the next generation
|x 1
|4 G:(DE-HGF)POF
|3 G:(DE-HGF)POF3
|b Energie
914 1 _ |y 2015
920 1 _ |0 I:(DE-Juel1)IEK-5-20101013
|k IEK-5
|l Photovoltaik
|x 0
980 _ _ |a conf
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IEK-5-20101013
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IMD-3-20101013


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