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
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
摘要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.
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.
ZOU Zhong-Fei;YAO Li-Shuang;TANG Xian-Zhu;JI Xin-Jian;XUAN Li. Fabrication of a Mono-Domain Alignment Ferroelectric Liquid Crystal Device Using a Polar Self-Assembled Monolayer[J]. 中国物理快报, 2008, 25(7): 2524-2526.
ZOU Zhong-Fei, YAO Li-Shuang, TANG Xian-Zhu, JI Xin-Jian, XUAN Li. Fabrication of a Mono-Domain Alignment Ferroelectric Liquid Crystal Device Using a Polar Self-Assembled Monolayer. Chin. Phys. Lett., 2008, 25(7): 2524-2526.
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