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@ARTICLE{Hartnagel:878689,
      author       = {Hartnagel, Paula and Kirchartz, Thomas},
      title        = {{U}nderstanding the {L}ight‐{I}ntensity {D}ependence of
                      the {S}hort‐{C}ircuit {C}urrent of {O}rganic {S}olar
                      {C}ells},
      journal      = {Advanced theory and simulations},
      volume       = {3},
      number       = {10},
      issn         = {2513-0390},
      address      = {Weinheim},
      publisher    = {Wiley-VCH Verlag},
      reportid     = {FZJ-2020-03007},
      pages        = {2000116},
      year         = {2020},
      abstract     = {In organic solar cells, bimolecular recombination is a key
                      factor limiting the device performance and creating the need
                      for characterization. Light‐intensity‐dependent
                      short‐circuit current density measurements are a
                      frequently used tool to qualitatively analyze bimolecular
                      recombination in a device. When applying a 0D model,
                      bimolecular recombination is expected to reduce the
                      otherwise linear correlation of the short‐circuit current
                      density Jsc and the light intensity Φ to a sublinear trend.
                      It is shown by numerical simulations that the slope of the
                      Jsc–Φ curve is affected by the recombination mechanism
                      (direct or via traps), the spatial distribution of charge
                      carriers and—in thick solar cells—by space charge
                      effects. Only the combination of these effects allows proper
                      explanation of the different cases, some of which cannot be
                      explained in a simple 0D device model.},
      cin          = {IEK-5},
      ddc          = {050},
      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)16},
      UT           = {WOS:000570297100001},
      doi          = {10.1002/adts.202000116},
      url          = {https://juser.fz-juelich.de/record/878689},
}