Surface-assisted orientational control of discotic liquid crystals by light

Seiichi Furumi, Dietmar Janietz, Masatoshi Kidowaki, Masaru Nakagawa, Shi N.Ya Morino, Joachim Stumpe, Kunihiro Ichimura

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper reports photoalignment control of discotic liquid crystal (DLC), a pentakis-(phenylethynyl)benzene derivative, using a thin film of an azobenzene-containing polymer. The polymer films was irradiated with non-polarized light obliquely, subsequently annealed at 240°C and coated with a DLC solution to give a mono-domain texture of DLC films with excellent optical quality. Photopatteming of DLC films was achieved by imagewise irradiation of the polymer film at an oblique incident.

Original languageEnglish
Pages (from-to)517-524
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Publication statusPublished - 2001


  • Azobenzene
  • Discotic liquid crystals
  • Photoalignment


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