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@ARTICLE{Krckemeier:845175,
      author       = {Krückemeier, Lisa and Kaienburg, Pascal and Flohre, Jan
                      and Bittkau, Karsten and Zonno, Irene and Krogmeier,
                      Benedikt and Kirchartz, Thomas},
      title        = {{D}eveloping design criteria for organic solar cells using
                      well-absorbing non-fullerene acceptors},
      journal      = {Communications Physics},
      volume       = {1},
      number       = {1},
      issn         = {2399-3650},
      address      = {London},
      publisher    = {Springer Nature},
      reportid     = {FZJ-2018-02479},
      pages        = {27},
      year         = {2018},
      abstract     = {In recent years, efficiencies of bulk heterojunction solar
                      cells have risen substantially mostly due to the development
                      of well-absorbing small molecules that replace fullerenes as
                      the acceptor molecule. The improved light absorption due to
                      the combination of two strongly absorbing molecules raises
                      the question, how to best combine the absorption onsets of
                      the donor and acceptor molecule to maximize efficiency. By
                      using numerical simulations, we explain under which
                      circumstances complementary absorption or overlapping
                      absorption bands of the two molecules will be more
                      beneficial for efficiency. Only when mobility and lifetime
                      of charge carriers are sufficiently high to allow sufficient
                      charge collection for layer thicknesses around the second
                      interference maximum, a combination of complementary
                      absorbing molecules is more efficient. For smaller
                      thicknesses, a blend of molecules with the same absorption
                      onset achieves higher efficiencies.},
      cin          = {IEK-5},
      ddc          = {530},
      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:000437243000001},
      doi          = {10.1038/s42005-018-0026-3},
      url          = {https://juser.fz-juelich.de/record/845175},
}