Textural, phase transition and electro-optic studies of polymer-stabilized blue phase liquid crystals

Malik, Praveen; Yadav, Sumit; Khushboo, .

doi:10.1016/j.molstruc.2019.03.097

Cited by 13 publications

(2 citation statements)

References 40 publications

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“…[5] Further various types of polymers with different proportions have been added and stabilized the BP in a wide temperature range including room temperature. [6][7][8][9] A very high concentration of polymers not only reduces the isotropic temperature but increased the operating voltage also, which create a problem for manufacturing low power consumption BPLC devices. There are some other issues such as hysteresis, residual birefringence etc.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Electro-Optical Properties of Size Dependent Nickel Nanoparticle Doped Blue Phase Liquid Crystals

Yadav¹,

Malik²,

Khushboo³

et al. 2022

ECS Trans.

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In present work, effect of nickel nanoparticles size on blue phase stabilization and its electric-optical properties has been demonstrated in In plane switching (IPS) configuration of liquid crystal cells. Variation in phase transitions and their textural behavior after doping of nickel nanoparticles of sizes 20nm and 40nm in pure blue phase liquid crystal was observed under polarizing optical microscope in IPS cells and compared the results with already reported data in indium tin oxide coated glass plate cells. Blue phase range has been widened after doping of both size of nickel nanoparticles and maximum BP range found is 6.5oC and 6.3oC in 20nm and 40nm-BPLC composites respectively in IPS cells. Voltage-transmission data has been taken for pure blue phase liquid crystal and nickel nanoparticles doped blue phase liquid crystal systems at a particular frequency and further various electro-optical parameters have been measured.

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Section: Introductionmentioning

confidence: 99%

Thermal and Electro-Optical Properties of Size Dependent Nickel Nanoparticle Doped Blue Phase Liquid Crystals

Yadav¹,

Malik²,

Khushboo³

et al. 2022

ECS Trans.

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“…Currently, nematic liquid crystals (NLCs) are used in most LCD products on the market. However, there is an ongoing search for more advanced display technologies; this makes polymer-stabilised blue-phase liquid crystals (PS-BPLCs) [3][4][5][6][7][8][9] that exhibit a faster response [3][4][5][6][7][8] highly valued by both academia and industry.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Yang

Chang

Chen

et al. 2021

IET Optoelectronics

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A multi-angle director model is proposed to simulate and interpret the electro-optical characteristics of a blue-phase liquid crystal (BPLC) cell driven by vertical and horizontal electric fields. Instead of employing the Kerr effect, the BPLC cell is considered as a stack of several high-pretilt nematic liquid crystal layers that can be simulated using the director model. Simulations are performed based on the director model and results are compared with those obtained with Kerr-effect-based methods. The theoretical model successfully simulated the electro-optical characteristics of the BPLC, consistent with experimental data. Hence, the model is expected to aid the design of next-generation BPLC displays.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Plasmonic‐Enhanced Polymer‐Stabilized Liquid Crystals Switching for Integrated Optical Attenuation

Jian,

Liu,

et al. 2024

Advanced Optical Materials

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Liquid crystals are widely used in photonics because of their profound electro–optic properties. However, the slow switching speeds (milliseconds) and the fluid nature of liquid crystals restrict their potential use in integrated photonics. In this work, polymer‐stabilized liquid crystals are utilized as the functional material to improve the response time with a polymer network that helps pre‐orientate the liquid crystal. Additionally, plasmonic slot structures are simultaneously employed to minimize the switch voltage by confining the optical field within the electrode spacing at subwavelength scales. Thanks to the large overlap of the optical and electric fields, the scattering states of the polymer‐stabilized liquid crystal can be effectively manipulated to modulate the loss of the propagating wave, resulting in strong optical attenuation in the integrated photonic platform. Specifically, a plasmonic enhanced polymer‐stabilized liquid crystal photonic device for operation at 1550 nm, which has a length of only 10 µm and shows an extinction ratio of 0.38 dB µm−1, with a power consumption of less than 6 µW and a response time ≈20 µs, resulting in a figure‐of‐merit of 0.012 mW.

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Textural, phase transition and electro-optic studies of polymer-stabilized blue phase liquid crystals

Cited by 13 publications

References 40 publications

Thermal and Electro-Optical Properties of Size Dependent Nickel Nanoparticle Doped Blue Phase Liquid Crystals

Thermal and Electro-Optical Properties of Size Dependent Nickel Nanoparticle Doped Blue Phase Liquid Crystals

Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Plasmonic‐Enhanced Polymer‐Stabilized Liquid Crystals Switching for Integrated Optical Attenuation

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