Optical orientation of nematic liquid crystal droplets via photoisomerization of an azodendrimer dopant

Sergey A. Shvetsov, Alexander V. Emelyanenko, Natalia I. Boiko, Alexander S. Zolot'ko, Yan Song Zhang, Jui Hsiang Liu, Alexei R. Khokhlov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Two sequential transformations of the orientational structure in nematic liquid crystal droplets containing a dendrimer additive (nanosized macromolecules with light-absorbing azobenzene terminal moieties) under light irradiation in the UV-blue spectral range were investigated. The origin of these transitions is in the change of the boundary conditions due to photoisomerization of the dendrimer adsorbed onto the liquid crystal-glycerol interface. It was shown that the photoisomerization processes of dendrimer molecules in a liquid crystal are accompanied by a spatial rearrangement of their azobenzene moieties, which is the key point in the explanation of the observed effects.

Original languageEnglish
Pages (from-to)870-879
Number of pages10
JournalBeilstein Journal of Nanotechnology
Volume9
Issue number1
DOIs
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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