Polymer ultrathin films via alternate self-assembly adsorption of polyelectrolyte and azo-dye molecules: photo-induced alignment and LC display properties

R. C. Advincula*, A. Baba, F. Kaneko

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In this report, we describe the fabrication and photo-induced alignment of ultrathin films of small molecular azobenzene dyes and polyelectrolytes using the alternate polyelectrolyte deposition (APD) technique. The molecular self-assembly process were investigated by QCM, ellipsometry, UV-vis spectroscopy, X-ray reflectometry, and other surface sensitive spectroscopic and microscopic methods to correlate with film formation parameters. The importance of layer ordering and dye aggregation phenomena is emphasized. We then utilized polarized UV-light to induce photo-alignment of these ultrathin films and observed high anisotropies dependent on the dye, layer preparation and thickness. Fabrication of hybrid LC cells using a nematic LC reveal that in-plane homogeneous alignment is influenced by the anisotropy of the dye aggregates.

本文言語English
ページ(範囲)195-200
ページ数6
ジャーナルMaterials Research Society Symposium - Proceedings
559
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料

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