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@ARTICLE{Wang:834126,
      author       = {Wang, Rui and Di, Zhen-Yu and M?ller-Buschbaum, Peter and
                      Frielinghaus, Henrich},
      title        = {{E}ffect of {PCBM} additive on morphology and
                      optoelectronic properties of {P}3{HT}- b -{PS} films},
      journal      = {Polymer},
      volume       = {121},
      issn         = {0032-3861},
      address      = {Oxford},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-04125},
      pages        = {173–182},
      year         = {2017},
      abstract     = {Thin blend films of the diblock copolymer
                      poly(3-hexylthiophene-2,5-diyl)-block-polystyrene
                      (P3HT-b-PS) and phenyl-C61-butyric acid methyl ester (PCBM)
                      are prepared and investigated. The morphology of films with
                      9, 25, 33, 50, 58 and $67\%$ PCBM weight fraction is
                      determined. The surface topography is probed with optical
                      microscopy and atomic force microscopy whereas the lateral
                      inner structures are determined using grazing incidence
                      small angle neutron scattering (GISANS). Grazing incidence
                      X-ray diffraction (GI-XRD) shows a blend ratio dependence of
                      the P3HT crystallites orientation within the block copolymer
                      films. The thermodynamically favoured P3HT edge-on
                      orientation is suppressed upon increasing the PCBM content
                      from $9\%$ till $33\%$ while it recovers in samples with a
                      PCBM weight fraction above $50\%.$ PCBM tends to interact
                      with the PS block at low PCBM fractions and forms segregated
                      domains at a PCBM weight fraction higher than $50\%.$ The
                      addition of PCBM decreases the degree of lamellar structure
                      order and well-ordered hexagonal packed cylindrical
                      structures emerge in at a PCBM weight fraction of $67\%.$
                      Absorbance and photoluminescence measurements show the
                      relationship between morphology transformation and
                      optoelectronic properties. The phenomena reported here could
                      provide an alternative view for potential nanotechnology
                      applications.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6215 - Soft Matter, Health and Life Sciences (POF3-621) /
                      6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6215 /
                      G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000405747100019},
      doi          = {10.1016/j.polymer.2017.06.016},
      url          = {https://juser.fz-juelich.de/record/834126},
}