Effect of the concentration of chiral compound on the photorefractive effect of flexoelectric smectic liquid crystal blends

被引：8

作者：

Sasaki, Takeo ^{[1
]}

Hara, Takuya ^{[1
]}

Hirakawa, Maho ^{[1
]}

Suzuki, Kaita ^{[1
]}

Khoa Van Le ^{[1
]}

Naka, Yumiko ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci, Dept Chem, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2022年 / 740卷 / 01期

关键词：

Asymmetric energy exchange; chiral smectic C phase; flexoelectric effect; photorefractive effect; two beam coupling; IMAGE AMPLIFICATION;

D O I：

10.1080/15421406.2022.2031773

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photorefractive effect of flexoelectric smectic liquid crystal blends was investigated. Smectic liquid crystal blends, composed of smectic-C liquid crystals, photoconductive chiral compounds and a sensitizer, are known to exhibit a large photorefractive effect. The chiral compound plays a critical role in the exhibition of large photorefractivity in smectic liquid crystals. The concentration of the chiral compound was varied and the photorefractive properties of the liquid crystal blend were examined. It was found that smectic-C liquid crystals containing small amounts of a chiral compound show a large photorefractivity even though they do not possess spontaneous polarizations.

引用

页码：1 / 16

页数：16

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