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@ARTICLE{Vad:187749,
      author       = {Vad, T. and Heidelmann, M. and Weirich, T. E. and Sager,
                      Wiebke and Zhang, Jing},
      title        = {{S}elf-assembly of biaxial discorectangular lead carbonate
                      nanosheets into stacked ribbons studied by {SAXS} and
                      {HAADF}-{STEM} tomographic tilt series},
      journal      = {Soft matter},
      volume       = {10},
      number       = {47},
      issn         = {1744-6848},
      address      = {London},
      publisher    = {Royal Soc. of Chemistry},
      reportid     = {FZJ-2015-01340},
      pages        = {9511 - 9522},
      year         = {2014},
      abstract     = {The self-assembling behaviour of 2.6 nm thin PbCO3
                      nanoplatelets with discorectangular shape and uniform width
                      and thickness occurring after their formation in nonionic
                      water-in-oil microemulsions has been investigated using
                      synchrotron small angle X-ray scattering (SAXS) and
                      (scanning) transmission electron microscopy ((S)TEM). The
                      presence of attractive depletion forces originating from the
                      ubiquitous microemulsion droplets triggers a new type of
                      superstructure at low particle concentration. Instead of the
                      universally observed formation of face-to-face assembled
                      lamellar mesostructures, the nanosheets self-organise into
                      extended ribbon structures, whereby each on top lying sheet
                      is displaced by a constant shift in the length and width
                      directions leading to a so far unprecedented staggered
                      zigzag-type stack assembly with restricted height. This type
                      of stacking gives rise to a complex interference pattern in
                      the isotropic small angle scattering of the stacked ribbon
                      assemblies (SRAs) in reverse micellar solution. Different to
                      the, for lamellar-structured nanosheets typical, diffraction
                      peaks at multiples of the wave vector corresponding to one
                      particular repeat distance, the scattering peaks measured in
                      this study are asymmetric, displaying a shoulder on their
                      low wave vector side. The asymmetric shape of the observed
                      face-to-face correlation peaks indicates that the SRAs do
                      not extend in one direction only. Their scattering behaviour
                      is analysed by expanding the Kratky–Porod structure factor
                      for stacking plates into three dimensions. High-angle
                      annular dark-field (HAADF)-STEM tilt series have
                      complementary been acquired to retrieve three-dimensional
                      structural information on the SRAs in the dry state and to
                      confirm the model used for the refinement of the SAXS data.},
      cin          = {ICS-3 / PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-3-20110106 / I:(DE-Juel1)PGI-5-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451)},
      pid          = {G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000345090400014},
      pubmed       = {pmid:25351908},
      doi          = {10.1039/C4SM01935K},
      url          = {https://juser.fz-juelich.de/record/187749},
}