Dynamic tuning of the director field in liquid crystal shells using block copolymers

@article{Noh2020DynamicTO,
  title={Dynamic tuning of the director field in liquid crystal shells using block copolymers},
  author={JungHyun Noh and Yiwei Wang and Hsin-Ling Liang and Venkata Subba Rao Jampani and Apala Majumdar and Jan P. F. Lagerwall},
  journal={arXiv: Soft Condensed Matter},
  year={2020}
}
When a nematic liquid crystal (LC) is confined on a self-closing spherical shell, topological constraints arise with intriguing consequences that depend critically on how the LC is aligned in the shell. We demonstrate reversible dynamic tuning of the alignment, and thereby the topology, of nematic LC shells stabilized by the nonionic amphiphilic block copolymer Pluronic F127. Deep in the nematic phase, the director is tangential to the interface, but upon approaching the temperature TNI of the… 
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