Relationship between rubbing-induced anisotropy and surface azimuthal anchoring energy of nematic liquid crystals
Relationship between rubbing-induced anisotropy and surface azimuthal anchoring energy of nematic liquid crystals
复制标题
向列液晶摩擦诱导各向异性与表面方位角锚定能的关系
DOI：
10.1002/jsid.149
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
and Tadashi Akahane
中科院分区：
文献类型：
--
作者：
Suguru Saito;Kazuya Goda;Munehiro Kimura;and Tadashi Akahane
采用三种摩擦布研究了摩擦诱导取向膜各向异性与向列液晶表面方位锚定能的关系。反射椭偏测量结果表明，聚酰亚胺取向膜的光学表面各向异性随RS的增加而单调增加，转矩平衡法测量的表面方位锚定能取决于取向膜的摩擦诱导各向异性。这表明，当使用合适的摩擦布时，可以通过监测摩擦引起的取向膜的光学各向异性来控制液晶分子的排列。
The relationship between the rubbing‐induced anisotropy of alignment films and the surface azimuthal anchoring energy of nematic liquid crystals was investigated using three kinds of rubbing cloths. Reflection ellipsometry revealed that the optical surface anisotropy of polyimide alignment films increases monotonically with increasing RS. The surface azimuthal anchoring energy measured by the torque balance method depends on the rubbing‐induced anisotropy of alignment films. This indicates that liquid crystal molecular alignment can be controlled by monitoring the rubbing‐induced optical anisotropy of alignment films when a suitable rubbing cloth is used.