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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},
}