MECHANISM OF NEMATIC MOLECULAR ALIGNMENT BASED ON FRICTION CHARGES AND SURFACE-TOPOLOGY BY RUBBING | |
SUGIMURA, A; ZHONGCAN, OY | |
1993 | |
会议日期 | JUN 21-26, 1992 |
会议地点 | PISA, ITALY |
关键词 | LIQUID-CRYSTAL STRENGTH |
卷号 | 14 |
期号 | 2 |
DOI | 10.1080/02678299308027646 |
页码 | 319-326 |
英文摘要 | A new and simple electric charge interaction mechanism has been proposed to explain the behaviour of the tilt angle of liquid crystals by rubbing. The mechanism of the molecular alignment is elucidated based on the effect of a static electric charge on a substrate surface treated by rubbing. An electric field which is dependent on the topology of a substrate surface allows a planar orientation of molecules with positive dielectric anisotropy. With increasing rubbing strength, the tilt angle varies slowly. The director of molecules with negative dielectric anisotropy is uniform and has a tilt angle determined by the molecular permanent dipole direction. The air-liquid crystal interface case is also considered. This model enables us to give a unified picture of the molecular alignment mechanism. |
会议录 | LIQUID CRYSTALS
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会议录出版者 | TAYLOR & FRANCIS LTD |
会议录出版地 | LONDON |
语种 | 英语 |
URL标识 | 查看原文 |
ISSN号 | 0267-8292 |
WOS研究方向 | Chemistry ; Crystallography ; Materials Science |
内容类型 | 会议论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/23811] ![]() |
专题 | SCI会议论文 |
作者单位 | ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA |
推荐引用方式 GB/T 7714 | SUGIMURA, A,ZHONGCAN, OY. MECHANISM OF NEMATIC MOLECULAR ALIGNMENT BASED ON FRICTION CHARGES AND SURFACE-TOPOLOGY BY RUBBING[C]. 见:. PISA, ITALY. JUN 21-26, 1992. |
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