INVESTIGATION OF ALIGNMENT PROPERTIES OF LANGMUIR-BLODGETT MONOLAYERS BY SCANNING TUNNELING MICROSCOPY

被引:11
|
作者
FANG, JY
LU, ZH
WANG, L
WEI, Y
机构
[1] Laboratory of Molecular and Biomolecular Electronics, Southeast University, Nanjing
基金
中国国家自然科学基金;
关键词
D O I
10.1016/0375-9601(92)90726-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The surface structures of lecithin Langmuir-Blodgett monolayers are directly observed by scanning tunneling microscopy (STM). At high surface pressures the monolayers show close structures, while at low surface pressures the monolayers show loose structures. The different surface structures have different efficacies for aligning the nematic liquid crystal MBBA. A possible alignment mechanism is proposed based on the STM results.
引用
收藏
页码:373 / 376
页数:4
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