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@ARTICLE{Cojocariu:916022,
      author       = {Cojocariu, Iulia and Jugovac, Matteo and Sarwar, Sidra and
                      Rawson, Jeff and Sanz, Sergio and Kögerler, Paul and Feyer,
                      Vitaliy and Schneider, Claus Michael},
      title        = {{S}emiconductor {H}alogenation in {M}olecular
                      {H}ighly‐{O}riented {L}ayered p–n (n–p) {J}unctions},
      journal      = {Advanced functional materials},
      volume       = {32},
      number       = {51},
      issn         = {1616-301X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2022-05868},
      pages        = {2208507 -},
      year         = {2022},
      abstract     = {Organic p–n junctions attract widespread interest in the
                      field of molecular electronics because of their unique
                      optoelectronic singularities. Importantly, the molecular
                      donor/acceptor character is strongly correlated to the
                      degree of substitution, e.g., the introduction of
                      electron-withdrawing groups. Herein, by gradually increasing
                      the degree of peripheral fluorination on planar,
                      D4h−symmetric iron(II) phthalocyanato (FePc) complexes,
                      the energy level alignment and molecular order is defined in
                      a metal-supported bilayered Pc-based junction using
                      photoemission orbital tomography. This non-destructive
                      method selectively allows identifying molecular levels of
                      the hetero-architectures. It demonstrates that, while the
                      symmetric fluorination of FePc does not disrupt the
                      long-range order and degree of metal-to-molecule charge
                      transfer in the first molecular layer, it strongly impacts
                      the energy alignment in both the interface and topmost layer
                      in the bilayered structures. The p–n junction formed in
                      the bilayer of perhydrogenated FePc and perfluorinated
                      FeF16Pc may serve as an ideal model for understanding the
                      basic charge-transport phenomena at the metal-supported
                      organic–organic interfaces, with possible application in
                      photovoltaic devices.},
      cin          = {PGI-6},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {5213 - Quantum Nanoscience (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5213},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000864411700001},
      doi          = {10.1002/adfm.202208507},
      url          = {https://juser.fz-juelich.de/record/916022},
}