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@ARTICLE{RodrguezMartnez:1006768,
      author       = {Rodríguez-Martínez, Xabier and Hartnagel, Paula and
                      Riera-Galindo, Sergi and Beket, Gulzada and Österberg,
                      Thomas and Gao, Feng and Kirchartz, Thomas and Inganäs,
                      Olle},
      title        = {{A}ir {P}rocessing of {T}hick and {S}emitransparent
                      {L}aminated {P}olymer:{N}on‐{F}ullerene {A}cceptor
                      {B}lends {I}ntroduces {A}symmetric {C}urrent–{V}oltage
                      {C}haracteristics},
      journal      = {Advanced functional materials},
      volume       = {33},
      number       = {27},
      issn         = {1616-301X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2023-01826},
      pages        = {2301192},
      year         = {2023},
      abstract     = {Non-fullerene acceptors have recently revolutionized indoor
                      organic photovoltaics (OPVs) with power conversion
                      efficiencies exceeding $30\%$ in laboratory scale.
                      Nevertheless, transferring their superior performance to
                      larger-scale prototyping, i.e., air-processing via
                      roll-to-roll compatible techniques, still shows severe
                      challenges. Herein, the industrial potential of the
                      PM6:IO4Cl blend, which is one of the most successful indoor
                      OPV photoactive layers (PALs), is thoroughly investigated.
                      The corresponding thick and semitransparent laminated
                      devices are fabricated entirely in air, by blade and
                      slot-die coating. Their current–voltage (J–V)
                      characteristics show anomalous features depending on the
                      illumination side, with the cathode side generally
                      outperforming the anode counterpart. Electrical and optical
                      modeling reveal that a plausible cause of such a phenomenon
                      is a dead layer that forms at the PAL/anode contact
                      interface that does not contribute to the photocurrent. Said
                      layer becomes undetectable when the PALs are made thin
                      enough (<35 nm each) leading to symmetric J–V curves and
                      improved light utilization efficiency. By screening the
                      photovoltaic performance of multiple donor:acceptor blends,
                      certain all-polymer and polymer:fullerene PALs are
                      identified as adequately symmetric candidates for thick
                      device up-scaling. Finally, ternary blends based on
                      PM6:IO4Cl:fullerene may constitute a viable route to
                      mitigate the electrical asymmetry detected on conventional
                      binary blends.},
      cin          = {IEK-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {1212 - Materials and Interfaces (POF4-121) / 1215 -
                      Simulations, Theory, Optics, and Analytics (STOA)
                      (POF4-121)},
      pid          = {G:(DE-HGF)POF4-1212 / G:(DE-HGF)POF4-1215},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000952708500001},
      doi          = {10.1002/adfm.202301192},
      url          = {https://juser.fz-juelich.de/record/1006768},
}