Monitoring surface molecular order in discotic liquid crystals

被引:8
作者
Burhanudin, Z [1 ]
Etchegoin, P [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England
关键词
D O I
10.1016/S0009-2614(01)00094-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Polarized confocal Raman spectroscopy is used to monitor surface molecular alignment in a droplet of a prototype discotic liquid crystal. We show that polarization selection rules of Raman active modes can be used to infer molecular alignment along specific directions in situations where no other experimental technique is available. Substrate-induced planar alignment along the wetting edge of a droplet, as well as molecular orientation around topological surface defects are explicitly shown. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:7 / 12
页数:6
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