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@ARTICLE{Seoneray:1027074,
      author       = {Seoneray, Isabel and Wu, Jianchang and Rocha-Ortiz, Juan S.
                      and Bornschlegl, Andreas J. and Barabash, Anastasia and
                      Wang, Yunuo and Lüer, Larry and Hauch, Jens and García,
                      Angélica and Zapata-Rivera, Jhon and Brabec, Christoph J.
                      and Ortiz, Alejandro},
      title        = {{U}nveiling the {R}ole of {BODIPY} {D}yes as
                      {S}mall‐{M}olecule {H}ole {T}ransport {M}aterial in
                      {I}nverted {P}lanar {P}erovskite {S}olar {C}ells},
      journal      = {Solar RRL},
      volume       = {8},
      number       = {12},
      issn         = {2367-198X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2024-03627},
      pages        = {2400225},
      year         = {2024},
      abstract     = {Perovskite solar cells (PSCs) have become a research
                      hotspot since their dramatic increase in power conversion
                      efficiency (PCE), surpassing $26\%$ due to advances in cell
                      engineering and interfacial layers. Within the last factor,
                      hole transporting materials play a crucial role in enhancing
                      device performance and stability. Among several molecular
                      building blocks, BODIPYs are attractive for the design of
                      novel hole transporting material (HTMs) due to their
                      outstanding photophysical and charge transport properties
                      easily tuned by synthetic modifications. Herein, the
                      synthesis of five new BODIPY-based HTMs PyBDP 1–5 are
                      reported, functionalized at the meso- and α- positions with
                      pyrenyl and arylamino units, respectively. The resulting
                      compounds exhibit broad absorption in the visible region,
                      remarkable thermal stability, narrow bandgaps, suitable
                      energy levels, and good hole extraction capability, as
                      subtracted from experimental and computational
                      characterizations. The performance of the BODIPY derivatives
                      as HTMs is evaluated in planar inverted (p-i-n) PSCs and
                      compared to commonly used PTAA, resulting in highly
                      efficient systems, reaching PCEs very close to that obtained
                      with the reference polymer $(21.51\%).$ The incorporation of
                      these BODIPY-based HTMs result in an outstanding PCE of
                      $20.37\%$ for devices including PyBDP-1 and $19.97\%$ for
                      devises containing PyBDP-3, thus demonstrating that BODIPY
                      derivatives are a promising alternative to obtain simple and
                      efficient organic HTMs.},
      cin          = {IEK-11},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-11-20140314},
      pnm          = {1213 - Cell Design and Development (POF4-121) / 1212 -
                      Materials and Interfaces (POF4-121)},
      pid          = {G:(DE-HGF)POF4-1213 / G:(DE-HGF)POF4-1212},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001229155700001},
      doi          = {10.1002/solr.202400225},
      url          = {https://juser.fz-juelich.de/record/1027074},
}