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@ARTICLE{Portz:849552,
      author       = {Portz, V. and Schnedler, M. and Eisele, H. and
                      Dunin-Borkowski, Rafal and Ebert, Ph.},
      title        = {{E}lectron affinity and surface states of {G}a{N} m -plane
                      facets: {I}mplication for electronic self-passivation},
      journal      = {Physical review / B},
      volume       = {97},
      number       = {11},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2018-03735},
      pages        = {115433},
      year         = {2018},
      abstract     = {The electron affinity and surface states are of utmost
                      importance for designing the potential landscape within
                      (heterojunction) nanowires and hence for tuning conductivity
                      and carrier lifetimes. Therefore, we determined for
                      stoichiometric nonpolar GaN(10¯10) m-plane facets, i.e.,
                      the dominating sidewalls of GaN nanowires, the electron
                      affinity to 4.06±0.07eV and the energy of the empty
                      Ga-derived surface state in the band gap to 0.99±0.08eV
                      below the conduction band minimum using scanning tunneling
                      spectroscopy. These values imply that the potential
                      landscape within GaN nanowires is defined by a surface
                      state-induced Fermi-level pinning, creating an upward band
                      bending at the sidewall facets, which provides an electronic
                      passivation.},
      cin          = {PGI-5 / ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000427816300004},
      doi          = {10.1103/PhysRevB.97.115433},
      url          = {https://juser.fz-juelich.de/record/849552},
}