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Fabrication of a Mono-Domain Alignment Ferroelectric Liquid Crystal Device Using a Polar Self-Assembled Monolayer |
| ZOU Zhong-Fei1,2, YAO Li-Shuang1,2, TANG Xian-Zhu1,2, JI Xin-Jian 1,2, XUAN Li1 |
| 1State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 1300332Graduate School of the Chinese Academy of Sciences, Beijing 100039 |
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| Cite this article: |
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ZOU Zhong-Fei, YAO Li-Shuang, TANG Xian-Zhu et al 2008 Chin. Phys. Lett. 25 2524-2526 |
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Abstract A mono-domain ferroelectric liquid crystal device (FLCD) is fabricated using a novel method. The cell used in this method is an asymmetric cell, typically the combination of a polar self-assembled monolayer (SAM) for one substrate and a rubbed polyimide for the other substrate. A defect-free alignment of ferroelectric liquid crystal is fabricated without applying a dc voltage to remove degeneracy in the layer structure. The contact angles of self-assembled monolayer and PI-2942 are measured and the polarity of SAM is higher than the PI alignment. It is found that the polarity of self-assembled monolayer is a key factor in the formation of mono-domain alignment of FLC.
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| Keywords:
42.79.Kr
42.70.Df
61.31.Hn
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Received: 16 January 2008
Published: 26 June 2008
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