Effect of Surface Free Energy on Stacking of Discotic Molecules in the Columnar Phase

摘要：

Discotic liquid crystals that consist of disc-like molecules can form columnar phase through self-assembly. The molecular stacking of disc-like molecules in the columnar phase on a variety of substrates with different surface free energies has been observed. In the molecular stacking, the surface free energy of the substrate plays an important role that determines the way the molecules anchor at the surface. On a surface with high free energy , the discotic molecules stack to form columns with the uniaxial face-on orientation. On a surface with low free energy , the edge-on anchoring of molecules is observed , and the discotic columns are organized with in plane homogeneous alignment.

关键词： Discotic Liquid Crystal Self-assembly Columnar Phase Surface Free Energy

作者: W. Zheng C.-Y. Chiang C.-W. Ong

作者单位: Institute of Electro-optical Engineering, National Sun Yat-Sen University,Kaohsiung 804, Taiwan, Chi Department of Chemistry, National Sun Yat-Sen University,Kaohsiung 804, Taiwan, China

会议类型: 国际会议

会议名称: 2007亚洲显示国际会议（AD07）

会议地点: 上海

会议语种:英文

页码: 1766-1771

在线出版日期: 2007-03-12（万方平台首次上网日期，不代表论文的发表时间）