Effect of Conformations of Trans- and Cis-Azobenzenes on Photoinduced Anchoring Transitions in a Nematic Liquid Crystal.
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- Ruslim Christian
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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- Komitov Lachezar
- Department of Microelectronics and Nanoscience, Chalmers University of Technology, S-41296 Gothenburg, Sweden
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- Matsuzawa Yoko
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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- Ichimura Kunihiro
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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抄録
Two azobenzenes with different positional substituents, 3,3′-dihexyloxy-2,2′-dimethylazobenzene (3,3′-azo) and 4,4′-dihexyloxy azobenzene (4,4′-azo), were doped onto a nematic liquid crystal (LC) to form photoresponsive guest-host LC mixtures. The photoinduced anchoring transition of the LC, triggered by trans-cis photoisomerization of the two dyes subjected to linearly polarized UV light was found to be different. Whereas the photoisomerization of 3,3′-azo only induced a transition from random planar (RP) to uniform planar (UP) (in-plane) alignment, that of 4,4′-azo additionally induced a transition from uniform planar to homeotropic (H) (out-of-plane) alignment of the LC at a longer exposure time. The anchoring behavior of the two azobenzenes is discussed in terms of the conformations of their trans- and cis-isomers and the interactions of the isomers with the solid surface of the substrate.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 39 (2A), L104-L106, 2000
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681229547520
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- NII論文ID
- 210000048278
- 110003928691
- 130004527045
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- NII書誌ID
- AA10650595
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/13474065
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- NDL書誌ID
- 4986317
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可