@article{ParkChengBoekeretal.2016,
  author    = {Park, Sungjune and Cheng, Xiao and B{\"o}ker, Alexander and Tsarkova, Larisa},
  title     = {Hierarchical Manipulation of Block Copolymer Patterns on 3D Topographic Substrates: Beyond Graphoepitaxy},
  series = {Advanced materials},
  volume    = {28},
  journal   = {Advanced materials},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0935-9648},
  doi       = {10.1002/adma.201601098},
  pages     = {6900 -- +},
  year      = {2016},
  abstract  = {Templates of complex nanopatterns in a form of hierarchically sequenced dots and stripes can be generated in block copolymer films on lithography-free 3D topographic substrates. The approach exploits thickness- and swelling-responsive morphological behavior of block copolymers, and demonstrates novel possibilities of topography-guided registration of nanopatterns due to periodic confinement and spontaneous orthogonal flow-fields.},
  language  = {en}
}
@article{KathreinBaiNunnsetal.2016,
  author    = {Kathrein, Christine C. and Bai, Wubin and Nunns, Adam and Gwyther, Jessica and Manners, Ian and B{\"o}ker, Alexander and Tsarkova, Larisa and Ross, Caroline A.},
  title     = {Electric field manipulated nanopatterns in thin films of metalorganic 3-miktoarm star terpolymers},
  series = {Soft matter},
  volume    = {12},
  journal   = {Soft matter},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1744-683X},
  doi       = {10.1039/c6sm00451b},
  pages     = {4866 -- 4874},
  year      = {2016},
  abstract  = {We report the effect of electric field on the morphological transitions and ordering behavior of polyferrocenylethylmethylsilane block (PFEMS)-containing copolymers. By analyzing structures in solvent-annealed films of metalorganic sphere-and cylinder-forming diblock copolymers, as well as of 3-miktoarm polyisoprene-arm-polystyrene-arm-PFEMS (3 mu-ISF) terpolymers, we decouple two types of responses to the electric field: morphological transformations as a result of an increase in the volume fraction of the PFEMS block by oxidation of the ferrocenyl groups, and the orientation of the dielectric interfaces of microdomains parallel to the electric field vector. In the case of 3m-ISF, the former effect dominates at high electric field strengths which results in an unexpected cylinder-to-sphere transition, leading to a well-ordered hexagonal dot pattern. Our results demonstrate multiple tunability of ordered microdomain morphologies, suggesting future applications in nanofabrication and surface patterning.},
  language  = {en}
}