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@ARTICLE{Leonhard:887823,
      author       = {Leonhard, Tobias and Schulz, Alexander D. and Röhm, Holger
                      and Wagner, Susanne and Altermann, Fabian J. and
                      Rheinheimer, Wolfgang and Hoffmann, Michael J. and Colsmann,
                      Alexander},
      title        = {{P}robing the {M}icrostructure of {M}ethylammonium {L}ead
                      {I}odide {P}erovskite {S}olar {C}ells},
      journal      = {Energy technology},
      volume       = {7},
      number       = {3},
      issn         = {2194-4296},
      address      = {Weinheim [u.a.]},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2020-04449},
      pages        = {1800989 -},
      year         = {2019},
      abstract     = {The microstructure of absorber layers is pivotally
                      important for all thin‐film solar technologies. Using
                      electron backscattered diffraction (EBSD), the crystal
                      orientation in methylammonium lead iodide thin films with
                      submicrometer resolution is reported. For the vast majority
                      of (110) oriented grains, the c‐axis of the perovskite
                      unit cell is oriented in‐plane. Although some adjacent
                      grains exhibit the same in‐plane horizontal orientation of
                      the c‐axis, no universal horizontal orientation of the
                      c‐axis within the sample plane exists. The (110) crystal
                      orientation correlates with an in‐plane orientation of the
                      ferroelectric polarization as investigated by vertical and
                      lateral piezoresponse force microscopy (PFM). The individual
                      grains with different crystal orientations that exhibit
                      different ferroelectric patterns and surface potentials are
                      identified. The strong correlation between crystal
                      orientation and ferroelectric polarization allows
                      conclusions to be drawn about the microstructure from PFM
                      measurements and, likewise, the ferroelectric polarization
                      to be derived from crystallographic observations by EBSD.},
      cin          = {IEK-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000462449500019},
      doi          = {10.1002/ente.201800989},
      url          = {https://juser.fz-juelich.de/record/887823},
}