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@ARTICLE{Urbain:171693,
author = {Urbain, F. and Wilken, K. and Smirnov, V. and Astakhov, O.
and Lambertz, A. and Becker, J.-P. and Rau, U. and Ziegler,
J. and Kaiser, B. and Jaegermann, W. and Finger, F.},
title = {{D}evelopment of {T}hin {F}ilm {A}morphous {S}ilicon
{T}andem {J}unction {B}ased {P}hotocathodes {P}roviding
{H}igh {O}pen-{C}ircuit {V}oltages for {H}ydrogen
{P}roduction},
journal = {International journal of photoenergy},
volume = {2014},
number = {Article ID 249317},
issn = {1687-529X},
address = {New York, NY [u.a.]},
publisher = {Hindawi Publ. Corp.},
reportid = {FZJ-2014-05263},
pages = {1 - 10},
year = {2014},
abstract = {Hydrogenated amorphous silicon thin film tandem solar cells
(a-Si:H/a-Si:H) have been developed with focus on high
open-circuit voltages for the direct application as
photocathodes in photoelectrochemical water splitting
devices. By temperature variation during deposition of the
intrinsic a-Si:H absorber layers the band gap energy of
a-Si:H absorber layers, correlating with the hydrogen
content of the material, can be adjusted and combined in a
way that a-Si:H/a-Si:H tandem solar cells provide
open-circuit voltages up to 1.87 V. The applicability of
the tandem solar cells as photocathodes was investigated in
a photoelectrochemical cell (PEC) measurement set-up. With
platinum as a catalyst, the a-Si:H/a-Si:H based
photocathodes exhibit a high photocurrent onset potential of
1.76 V versus the reversible hydrogen electrode (RHE) and
a photocurrent of 5.3 mA/cm2 at 0 V versus RHE (under
halogen lamp illumination). Our results provide evidence
that a direct application of thin film silicon based
photocathodes fulfills the main thermodynamic requirements
to generate hydrogen. Furthermore, the presented approach
may provide an efficient and low-cost route to solar
hydrogen production.},
cin = {IEK-5},
ddc = {540},
cid = {I:(DE-Juel1)IEK-5-20101013},
pnm = {111 - Thin Film Photovoltaics (POF2-111) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF2-111 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000339792500001},
doi = {10.1155/2014/249317},
url = {https://juser.fz-juelich.de/record/171693},
}