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@ARTICLE{Astakhov:905134,
      author       = {Astakhov, Oleksandr and Smirnov, Vladimir and Rau, Uwe and
                      Merdzhanova, Tsvetelina},
      title        = {{P}rediction of {L}imits of {S}olar‐to‐{H}ydrogen
                      {E}fficiency from {P}olarization {C}urves of the
                      {E}lectrochemical {C}ells},
      journal      = {Solar RRL},
      volume       = {6},
      number       = {2},
      issn         = {2367-198X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2022-00426},
      pages        = {2100783},
      year         = {2022},
      abstract     = {The maximum solar-to-hydrogen efficiency (STH) in directly
                      coupled photovoltaic-assisted water-splitting systems is
                      achieved when the photovoltaic (PV) and electrochemical (EC)
                      devices are power matched precisely. This matching requires
                      that the polarization curve of the EC device crosses the
                      current–voltage (IV) characteristics of the PV device at
                      its maximum power point (MPP). Conversely, each point on the
                      EC polarization curve can be considered the MPP of a PV
                      device optimally coupled to the EC device. Therefore, at
                      each point on the polarization curve, the minimum PV
                      efficiency and maximum EC efficiency can be calculated for a
                      specific irradiance. The product of both efficiencies
                      generates the STH limit that can be attained at that
                      specific point on the polarization curve. This “reverse
                      analysis,” carried out with elementary math, does not
                      involve any modeling or analysis of PV IV characteristics.
                      Herein, this reverse analysis is described and how it can be
                      used to quantify losses in PV–EC systems and the effect of
                      mutual scaling of PV and EC devices is shown. This method is
                      presented using a NiMo/NiFeOX catalyst pair as an example
                      and was applied to a variety of PV–EC combinations
                      described in the literature.},
      cin          = {IEK-5},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {1213 - Cell Design and Development (POF4-121)},
      pid          = {G:(DE-HGF)POF4-1213},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000726287900001},
      doi          = {10.1002/solr.202100783},
      url          = {https://juser.fz-juelich.de/record/905134},
}