Photogeneration of high pretilt angles of nematic liquid crystals by azobenzene-containing polymer films

Seiichi Furumi, Masaru Nakagawa, Shin'ya Morino, Kunihiro Ichimura, Hidehiko Ogasawara

研究成果: Article査読

43 被引用数 (Scopus)

抄録

A vertically aligned (VA) type of nematic liquid-crystal (LC) cell was explored using photoirradiated thin films of a polymethacrylate with mesogenic moieties of 4-trifluoromethoxyazobenzene as side chains. Optical anisotropy was generated by slantwise irradiation of films of the polymer with nonpolarized ultraviolet light, followed by annealing treatment to enhance the photodichroism which displayed thermal stability. The photoirradiated films brought about high pretilt angles of the LC so that a VA-type LC cell was fabricated. The cell exhibited electro-optical properties with excellent optical quality on applying voltages even after heating at 100°C for several hours.

本文言語English
ページ(範囲)2438-2440
ページ数3
ジャーナルApplied Physics Letters
74
17
DOI
出版ステータスPublished - 1999 4 26
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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