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@INPROCEEDINGS{Welter:905137,
author = {Welter, Katharina and Becker, Jan Philipp and Jaegermann,
Wolfram and Finger, Friedhelm and Smirnov, Vladimir},
title = {{E}ffects of varied illumination on the performance of
solar water splitting systems and evaluation of annual
hydrogen generation},
reportid = {FZJ-2022-00429},
year = {2021},
abstract = {We study the effects of simulated outdoor illumination
conditions on the performance of photovoltaic-biased
electrosynthetic (PV?EC) systems used for the generation of
hydrogen by means of solar water splitting. An integrated
PV-EC cell consists of a photovoltaic cell (PV) directly
combined with an electrolysis cell (EC), where the chemical
reactions take place. In the present work, multijunction
silicon based solar cells [1] were implemented for the PV
part of the device together with an EC cell using a Pt/IrOx
catalyst system. Annual variations in the solar illumination
spectra influence the device performance together with
long-term energy conversion. Both PV device and PV-EC device
performance under varied spectral conditions differ from the
performance obtained under standard AM1.5G illumination. Our
model accounts for annual spectral changes in illumination
and predicts the long-term (1 year) performance of PV?EC
systems in terms of the hydrogen amount produced for a given
geographical location for various types of multijunction
photovoltaic systems (tandem, triple, and quadruple
junctions). [1] F. Urbain, V. Smirnov, J.P. Becker et al,
Energy Env. Sci. 2016, 9, 145?154 [2] K. Welter et al,
Energy Fuels 2021, 35, 1, 839-846},
month = {Sep},
date = {2021-09-20},
organization = {E-MRS Fall Meeting 2021, virtual
(Poland), 20 Sep 2021 - 23 Sep 2021},
subtyp = {Other},
cin = {IEK-5},
cid = {I:(DE-Juel1)IEK-5-20101013},
pnm = {121 - Solar cells of the next generation (POF3-121)},
pid = {G:(DE-HGF)POF3-121},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/905137},
}