A novel phase behavior and optical properties in a (two nematics/cholesteric) liquid crystal composite system

被引：5
|
作者：
Hwang, JC [1 ]
Liang, SC [1 ]
Liang, KH [1 ]
机构：
[1] Yuan Ze Univ, Dept Chem Engn, Tao Yuan 32026, Taiwan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 08期
关键词：
induced smectic phase; liquid crystal; light scattering; transparent; opaque;
D O I：
10.1143/JJAP.37.4444
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The phase behavior and optical properties of a liquid crystal (LC) composite (induced smectic phase formed by mixing two nematic LCs and one cholesteric LC) have been studied. The nematic liquid crystal 4-cyano-4'-pentyloxy biphenyl 50CB with a strong polar terminal group was miscible with the nematic liquid crystal 4-hexyloxyphenyl-4'-pentyl benzoate HPPB having a weak polar terminal group. This binary mixture formed an induced smectic phase over a wide temperature range. The (induced smectic/cholesteric) ternary composite exhibited smectic A, cholesteric and blue phases, A novel phase was observed at the cholesteric-smectic phase transition region. The ternary system exhibited highly transparent and opaque states in the smectic and cholesteric phases, respectively, without the electric field.
引用
收藏
页码：4444 / 4447
页数：4
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