Blue Phase-Polymer-Templated Ferroelectric Nematic Liquid Crystal

被引：5

作者：

Nakajima, Kazuma ^{[1
]}

Kamifuji, Hirokazu ^{[1
]}

Nakase, Mahiro ^{[1
]}

Nishi, Kento ^{[1
]}

Kikuchi, Hirotsugu ^{[2
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Elect Elect Informat Engn, 2-1 Yamada Oka, Suita, Osaka 5650871, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2024年 / 16卷 / 48期

基金：

日本学术振兴会;

关键词：

liquid crystal; blue phase; ferroelectric nematic; Kerr effect; electro-optic; KOSSEL DIAGRAMS;

D O I：

10.1021/acsami.4c17037

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ferroelectric nematic liquid crystals (NFLCs) are promising electronic materials owing to their giant permittivity, polarization, and nonlinear optical coefficients. Although it is difficult to polymer-stabilize the NFLC orientation state due to their low affinity to polymers, in this study, we have succeeded in stabilizing the orientation into a blue phase (BP) three-dimensional structure by using BP polymer networks. This BP polymer-templated NFLC retains their ferroelectric properties and stabilizes with macroscopically canceled polarization due to the BP structure. The large polarization and dielectric constant of the NFLCs resulted in a large electro-optical Kerr effect. In addition, Curie point was observed in the BP polymer-templated NFLC, indicating the existence of multiple kinetic modes in the NFLCs themselves. This breakthrough expands the range of applications for both BPs and NFLCs.

引用

页码：66552 / 66559

页数：8

共 40 条

[1] Dielectric Properties of a Ferroelectric Nematic Material: Quantitative Test of the Polarization-Capacitance Goldstone Mode [J].