Liquid crystal alignment controlled by LB films

Ruibo Lu, Keshu Xu, Yin Zhang, Jianhua Gu, Haiming Wu, Zuhong Lu

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Copper phthalocyanine doped polymethacrylate Langmuir-Blodgett films were transferred to align a nematic liquid crystal 5CB. It is found that the pre-tilt angle of the liquid crystal can be controlled with the variation of the doped copper phthalocyanine molecular ratio and is correlated with the dichroic ratio of the aligning layer. The polarity of the aligning layer is regarded as the most likely underlying factor that causes the different LC alignment configurations.

Original languageEnglish (US)
Pages (from-to)449-452
Number of pages4
JournalPhysics Letters A
Volume231
Issue number5-6
DOIs
StatePublished - Jul 14 1997

Keywords

  • Alignment
  • Langmuir-Blodgett films
  • Liquid crystal
  • Phthalocyanine

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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