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@ARTICLE{Wang:862527,
      author       = {Wang, Rui and Tong, Yu and Wang, Kun and Xia, Senlin and
                      Kentzinger, Emmanuel and Soltwedel, Olaf and
                      Müller-Buschbaum, Peter and Frielinghaus, Henrich},
      title        = {{M}onitoring the morphological evolution in
                      mixed-dimensional lead bromide perovskite film with
                      lamellar-stacked perovskite nanoplatelets},
      journal      = {Nanoscale horizons},
      volume       = {4},
      number       = {5},
      issn         = {2055-6764},
      address      = {Cambridge},
      publisher    = {Royal Society of Chemistry},
      reportid     = {FZJ-2019-02826},
      pages        = {1139-1144},
      year         = {2019},
      abstract     = {Mixed-dimensional lead bromide perovskite films combine the
                      properties of both three-dimensional (3D) and
                      two-dimensional (2D) perovskite crystals, and due to their
                      good humidity tolerance, they emerge as promising candidates
                      for long-term stable optoelectronic applications. In order
                      to further tailor the film morphology aiming for a better
                      device performance, it is important to unravel the
                      structural formation mechanism in these perovskite thin
                      films. In the present study, the formation of 3D lead
                      bromide perovskite crystals and the self-assembly of
                      lamellar-stacked 2D perovskite nanoplatelets are
                      comprehensively studied. Samples are prepared through a
                      two-step vapor assisted route with different vapor exposure
                      times in order to monitor the detailed morphology at the
                      specific reaction stage. With grazing incidence X-ray
                      scattering techniques, the preferential orientation of the
                      3D crystals is found to decrease upon increasing the
                      reaction time. Also, it is evidenced that well-ordered
                      in-plane lamellar-stacked 2D nanoplatelets form aggregates
                      in the bulk structure only. The obtained hierarchical
                      morphology shows excellent structural stability in a humid
                      atmosphere even at a relative humidity level of $80\%.$ Our
                      findings statistically offer a morphological understanding,
                      which is important for the optimization of the sample
                      preparation route and thus the resulting performance of
                      moisture-tolerant perovskite based optoelectronic devices.},
      cin          = {JCNS-FRM-II / MLZ / JCNS-1 / JCNS-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {144 - Controlling Collective States (POF3-144) / 6213 -
                      Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623) / 6G15 - FRM II / MLZ
                      (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101 / EXP:(DE-MLZ)N-REX-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000481910600010},
      doi          = {10.1039/C9NH00156E},
      url          = {https://juser.fz-juelich.de/record/862527},
}