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@ARTICLE{Senkovskiy:858679,
      author       = {Senkovskiy, Boris V. and Usachov, Dmitry Yu. and Fedorov,
                      Alexander V. and Marangoni, Tomas and Haberer, Danny and
                      Tresca, Cesare and Profeta, Gianni and Caciuc, Vasile and
                      Tsukamoto, Shigeru and Atodiresei, Nicolae and Ehlen, Niels
                      and Chen, Chaoyu and Avila, José and Asensio, Maria C. and
                      Varykhalov, Andrei Yu. and Nefedov, Alexei and Wöll,
                      Christof and Kim, Timur K. and Hoesch, Moritz and Fischer,
                      Felix R. and Grüneis, Alexander},
      title        = {{B}oron-{D}oped {G}raphene {N}anoribbons: {E}lectronic
                      {S}tructure and {R}aman {F}ingerprint},
      journal      = {ACS nano},
      volume       = {12},
      number       = {8},
      issn         = {1936-086X},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2018-07524},
      pages        = {7571 - 7582},
      year         = {2018},
      abstract     = {We investigate the electronic and vibrational properties of
                      bottom-up synthesized aligned armchair graphene nanoribbons
                      of N = 7 carbon atoms width periodically doped by
                      substitutional boron atoms (B-7AGNRs). Using angle-resolved
                      photoemission spectroscopy and density functional theory
                      calculations, we find that the dopant-derived valence and
                      conduction band states are notably hybridized with
                      electronic states of Au substrate and spread in energy. The
                      interaction with the substrate leaves the bands with pure
                      carbon character rather unperturbed. This results in an
                      identical effective mass of ≈0.2 m0 for the next-highest
                      valence band compared with pristine 7AGNRs. We probe the
                      phonons of B-7AGNRs by ultrahigh-vacuum (UHV) Raman
                      spectroscopy and reveal the existence of characteristic
                      splitting and red shifts in Raman modes due to the presence
                      of substitutional boron atoms. Comparing the Raman spectra
                      for three visible lasers (red, green, and blue), we find
                      that interaction with gold suppresses the Raman signal from
                      B-7AGNRs and the energy of the green laser (2.33 eV) is
                      closer to the resonant E22 transition. The hybridized
                      electronic structure of the B-7AGNR–Au interface is
                      expected to improve electrical characteristics of contacts
                      between graphene nanoribbon and Au. The Raman fingerprint
                      allows the easy identification of B-7AGNRs, which is
                      particularly useful for device fabrication.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / Hybrid 2D-based interfaces from first principles
                      $(jias1e_20180501)$},
      pid          = {G:(DE-HGF)POF3-143 / $G:(DE-Juel1)jias1e_20180501$},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30004663},
      UT           = {WOS:000443525600014},
      doi          = {10.1021/acsnano.8b04125},
      url          = {https://juser.fz-juelich.de/record/858679},
}