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@ARTICLE{Wu:1046019,
      author       = {Wu, Jianchang and Zhang, Jiyun and Wang, Luyao and
                      Jakšić, Jovana and Barabash, Anastasia and Veljković,
                      Dušan and Bornschlegl, Andreas J. and Jovanov, Vladislav
                      and Lahn, Leopold and Kasian, Olga and Pérez-Ojeda, M.
                      Eugenia and Götz, Klaus and Unruh, Tobias and Li, Chaohui
                      and Peng, Zijian and Wang, Yunuo and Hauch, Jens and Deng,
                      Lin-Long and Maslak, Veselin and Mitrović, Aleksandra and
                      Li, Gang and Brabec, Christoph},
      title        = {{D}iastereomeric {F}ullerene {C}omposite {E}ngineering for
                      {E}nhanced {P}erovskite {S}olar {C}ells},
      journal      = {Journal of the American Chemical Society},
      volume       = {147},
      number       = {35},
      issn         = {0002-7863},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2025-03659},
      pages        = {32045 - 32053},
      year         = {2025},
      abstract     = {Achieving high performance and long-term stability in
                      perovskite solar cells (PSCs) typically requires the use of
                      surface passivation layers to suppress the interfacial
                      defects. However, these additional passivation agents often
                      introduce chemical and structural instabilities, limiting
                      the device lifetime. Here, we present a molecular
                      engineering strategy utilizing a chiral series of
                      C60-Furan-Sugar (CFS) fullerene derivatives blended with
                      [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) to modify
                      the electron transport layer (ETL). The incorporation of
                      CFSs significantly enhances the electron mobility and
                      dielectric constant of the ETL, while their intrinsic
                      passivation functionality effectively passivates perovskite
                      surface defects. As a result, PSCs employing PCBM:CFS-RS
                      blends achieve a power conversion efficiency (PCE) of
                      $25.81\%$ without the use of additional passivation layers
                      and retain $95\%$ of their initial performance after 1000 h
                      of aging. Notably, CFS-RS is a chiral molecule bearing a
                      side chain with R/S configurational isomers, which
                      facilitates interfacial compatibility and contributes to the
                      enhanced device performance. This work demonstrates that
                      tuning the orientation of polar substituents in fullerene
                      side chains can effectively influence the optoelectronic
                      properties of the blended films, thereby simultaneously
                      enhancing both efficiency and stability in PSCs.},
      cin          = {IET-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IET-2-20140314},
      pnm          = {1213 - Cell Design and Development (POF4-121)},
      pid          = {G:(DE-HGF)POF4-1213},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {40839343},
      UT           = {WOS:001555400300001},
      doi          = {10.1021/jacs.5c10340},
      url          = {https://juser.fz-juelich.de/record/1046019},
}