Emergence of a novel optically isotropic transient state with low frequency in a blue phase liquid crystal mixture

被引：10

作者：

Mukherjee, Amrita ^{[1
]}

Yang, Gyu Hyung ^{[1
,2
]}

Jeong, Heon ^{[1
,2
]}

Nayek, Prasenjit ^{[1
]}

Kang, Shin-Woong ^{[1
]}

Lee, Seung Hee ^{[1
,2
,3
]}

Hong, Seung Ho ^{[3
]}

Lee, Hyuck Jin ^{[3
]}

Shin, Sung-Tae

机构：

[1] Chonbuk Natl Univ, Dept BIN Fus Technol, Jeonju, Jeonbuk, South Korea

[2] Chonbuk Natl Univ, Dept Polymer Nanosci & Technol, Jeonju, Jeonbuk, South Korea

[3] LCD Res Ctr, LCD Div Samsung Elect, Giheung, Gyeonggi Do, South Korea

来源：

LIQUID CRYSTALS | 2012年 / 39卷 / 02期

关键词：

blue phase; chiral nematic liquid crystal; hysteresis; COLOR; KERR;

D O I：

10.1080/02678292.2011.631045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electro-optical hysteresis characteristics in a blue phase liquid crystal system showing multi-domain platelet type body-centred cubic (BP-I) structure at different levels of applied electric field have been investigated. The BP-I state possesses a large degree of hysteresis due to its compact body-centred cubic structure. The hysteresis behaviour is discussed in the context of simulation and theoretical studies reported earlier. When the cell is driven with a low frequency square wave, a novel optically isotropic state with high value of the Kerr constant has been observed. Hysteresis and response time both show relatively lower values in this state with respect to the multi-domain BP-I state.

引用

页码：231 / 237

页数：7

共 19 条

[1] Hysteresis Effects in Blue-Phase Liquid Crystals [J].

Chen, Kuan-Ming ;

Gauza, Sebastian ;

Xianyu, Haiqing ;

Wu, Shin-Tson .

JOURNAL OF DISPLAY TECHNOLOGY, 2010, 6 (08) :318-322

[2] Submillisecond Gray-Level Response Time of a Polymer-Stabilized Blue-Phase Liquid Crystal [J].

Chen, Kuan-Ming ;

Gauza, Sebastian ;

Xianyu, Haiqing ;

Wu, Shin-Tson .

JOURNAL OF DISPLAY TECHNOLOGY, 2010, 6 (02) :49-51

[3]

Coles HJ, 2005, NATURE, V436, P997, DOI [10.1038/nature03932, 10.1038/nature003932]

[4] ELECTRIC-FIELD INDUCED PHASE-TRANSITIONS AND COLOR SWITCHING IN THE BLUE PHASES OF CHIRAL NEMATIC LIQUID-CRYSTALS [J].

COLES, HJ ;

GLEESON, HF .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1989, 167 :213-225

[5] NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY IN CHOLESTERIC LIQUID-CRYSTALS .2. BLUE PHASE [J].

COLLINGS, PJ ;

MCCOLL, JR .

JOURNAL OF CHEMICAL PHYSICS, 1978, 69 (07) :3371-3373

[6]

Crooker P.P., 2001, BLUE PHASES CHIRALIT

[7] Modeling of Blue Phase Liquid Crystal Displays [J].

Ge, Zhibing ;

Rao, Linghui ;

Gauza, Sebastian ;

Wu, Shin-Tson .

JOURNAL OF DISPLAY TECHNOLOGY, 2009, 5 (07) :250-256

[8] Large electro-optic Kerr effect in polymer-stabilized liquid-crystalline blue phases [J].

Hisakado, Y ;

Kikuchi, H ;

Nagamura, T ;

Kajiyama, T .

ADVANCED MATERIALS, 2005, 17 (01) :96-+

[9] Nanoparticle-induced widening of the temperature range of liquid-crystalline blue phases [J].

Karatairi, Eva ;

Rozic, Brigita ;

Kutnjak, Zdravko ;

Tzitzios, Vassilios ;

Nounesis, George ;

Cordoyiannis, George ;

Thoen, Jan ;

Glorieux, Christ ;

Kralj, Samo .

PHYSICAL REVIEW E, 2010, 81 (04)

[10] Polymer-stabilized liquid crystal blue phases [J].

Kikuchi, H ;

Yokota, M ;

Hisakado, Y ;

Yang, H ;

Kajiyama, T .

NATURE MATERIALS, 2002, 1 (01) :64-68

← 1 2 →