The effects of azo-oxadiazole-based bent-shaped molecules on the temperature range and the light-responsive performance of blue phase liquid crystal

2019 ◽  
Vol 46 (7) ◽  
pp. 1024-1034 ◽  
Author(s):  
Yong-Bo Yu ◽  
Wan-Li He ◽  
Zi-Mo Jiang ◽  
Zhao-Feng Yu ◽  
Lei Ren ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Temperature Range ◽  
Phase Liquid ◽  
Blue Phase

The temperature range and optical properties of the liquid crystalline blue phase in inverse opal structures

2018 ◽  
Vol 6 (41) ◽  
pp. 11071-11077 ◽  
Author(s):  
Yuxian Zhang ◽  
Weidong Zhao ◽  
Yongbo Yu ◽  
Zhou Yang ◽  
Wanli He ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Three Dimensional ◽  
Inverse Opal ◽  
Optical Performance ◽  
Liquid Crystal Device ◽  
Temperature Range ◽  
Phase Liquid ◽  
Blue Phase

A liquid crystal device was developed by infiltrating a blue phase liquid crystal (BPLC) in three-dimensional SiO2 inverse opal (IOP) structures, of which the BP temperature range and electro-optical performance were investigated.

Blue phase liquid crystal microcapsules: confined 3D structure inducing fascinating properties

2019 ◽  
Vol 7 (16) ◽  
pp. 4822-4827 ◽  
Author(s):  
Pengcheng Lin ◽  
Zhan Wei ◽  
Qi Yan ◽  
Ying Chen ◽  
Minghui Wu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
3D Structure ◽  
Temperature Range ◽  
Switch Mode ◽  
Phase Liquid ◽  
Blue Phase

3D Confined blue phase liquid crystal microcapsules exhibit a widened BP temperature range, thermotropic color library and reversible surface-switch mode.

scholarly journals InP/ZnS quantum dots doped blue phase liquid crystal with wide temperature range and low driving voltage

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jiayue Tang ◽  
Fashun Liu ◽  
Mengli Lu ◽  
Dongyu Zhao
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Quantum Dot ◽  
Electric Field ◽  
Driving Voltage ◽  
Practical Application ◽  
Temperature Range ◽  
Phase Liquid ◽  
Blue Phase

Abstract Blue-phase liquid crystals (BPLCs) are regarded as potential materials for the exploitation of next-generation optical devices due to the rapid response, wide viewing angle, and simple industrial production procedures. However, practical application of traditional BPLCs is limited by their narrow temperature range and high driving voltage. Herein, we demonstrated that doping of chiral molecular isosorbide hexyloxybenzoate (R811) into BPLCs is able to increase the temperature range. More importantly, addition of InP/ZnS quantum dots (QDs) with oleylamine surface groups could also effectively broaden the temperature range of the BPLCs further while decreasing the driving voltage, which is attributed to the quantum dot trapped by BPLCs lattice defect that reduces its free energy. Since the trapped quantum dot subsequently forms a local electric field under electric field, the effective electric field of the surrounding liquid crystal molecules is enhanced and the rotation of the liquid crystal molecules is accelerated. Specially, the temperature range is widened by 1.4 °C, and the driving voltage is reduced by 57%, under the optimal concentration of R811 and lnP/ZnS QDs. The accomplishment we proposed in this work is a prospective optimization which makes the practical application of blue phase liquid crystals one step closer.

scholarly journals Low voltage and high contrast blue phase liquid crystal with red-shifted Bragg reflection

2013 ◽  
Vol 102 (1) ◽  
pp. 011113 ◽  
Author(s):  
Jin Yan ◽  
Zhenyue Luo ◽  
Shin-Tson Wu ◽  
Jyh-Wen Shiu ◽  
Yu-Cheng Lai ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Low Voltage ◽  
Bragg Reflection ◽  
High Contrast ◽  
Phase Liquid ◽  
Blue Phase

Hydrogen-bonded bent-core blue phase liquid crystal complexes containing various molar ratios of proton acceptors and donors

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32319-32327 ◽  
Author(s):  
Chun-Chieh Han ◽  
Yu-Chaing Chou ◽  
San-Yuan Chen ◽  
Hong-Cheu Lin
Keyword(s):  
Liquid Crystal ◽  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Chiral Center ◽  
Molar Ratio ◽  
Core Complex ◽  
Molar Ratios ◽  
Phase Liquid ◽  
Blue Phase

The molar ratio, alkyl chain length, lateral fluoro-substitution and the chiral center of H-bonded bent-core supramolecules would affect the BP ranges of BPLC complexes. H-bonded bent-core complex PIIIC9/AIIF* (3/7 mol mol−1) displayed the widest BPI range of ΔTBPI = 12 °C.

A Single-Cell-Gap Transflective Display Using a Blue-Phase Liquid Crystal

2011 ◽  
Vol 7 (4) ◽  
pp. 170-173 ◽  
Author(s):  
Feng Zhou ◽  
Jian-Peng Cui ◽  
Qiong-Hua Wang ◽  
Da-Hai Li ◽  
Di Wu
Keyword(s):  
Liquid Crystal ◽  
Single Cell ◽  
Phase Liquid ◽  
Blue Phase

Optically induced birefringence in dye-doped blue phase liquid crystals

2019 ◽  
Vol 46 (6) ◽  
pp. 913-919
Author(s):  
Lin ◽  
Kuo ◽  
Huang ◽  
Wu ◽  
Lin ◽  
...  
Keyword(s):  
Refractive Index ◽  
Liquid Crystal ◽  
Pump Beam ◽  
Pump Intensity ◽  
Photoinduced Change ◽  
Methyl Red ◽  
Sem Images ◽  
Photoinduced Birefringence ◽  
Phase Liquid ◽  
Blue Phase

This paper investigates the photoinduced change of refractive index in dye (methyl red, MR)-doped blue phase (DDBP) cells by illumination of a pump beam. Through excitation of light irradiation with proper photon energy, MR can transform from trans-state to cis-state and successively diffuse and anisotropically adsorb on the inner glass substrate of the DDBP cell along the direction perpendicular to the polarisation of the pump beam. The adsorbed MR molecules can effectively rotate the orientation of the liquid crystal (LC) molecules and thereby modulate the effective refractive index of the DDBP cell. The SEM images of the adsorbed regions of the illuminated DDBP samples were also taken for discussing the relation between the pump intensity and the photoinduced birefringence.

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