Improvement in electro-optical and dielectric properties of Silver nanoparticles dispersed in a nematic liquid crystal

IF 2.1 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2025-07-02 DOI:10.1016/j.ssc.2025.116068

N. Navya, H.S. Sumantha, B.L. Suresha

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Abstract

In this paper, comprehensive results on electro-optical and dielectric properties of Silver nanoparticles dispersed in host 6OCB nematic liquid crystal (4-Cyano-4^l-hexyloxybiphenyl) systems are reported. We observed uniform dispersion of silver nanoparticles into nematic 6OCB LC by POM. The silver nanoparticles aggregation starts at 0.75 wt% dispersion. It is shown that the electro-optical and dielectric properties are strongly influenced by the concentration of nanoparticles in host nematic liquid crystal and applied electric field. The electrical conductivity, birefringence and components of permittivity are found to be dependent on temperature and concentration of nanoparticles into host 6OCB liquid crystal. The dielectric components decrease due to the strong antiparallel dipolar interaction between the pure nematic liquid crystal and Silver nanoparticles. The response time of the nematic liquid crystal-Silver nanocomposites decrease with the increase in the concentration of Silver nanoparticles.

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向列相液晶中分散银纳米粒子电光和介电性能的改善

本文报道了分散在宿主6OCB向列相液晶（4-氰基-4 -己基氧联苯）体系中的银纳米粒子的电光和介电性能的综合结果。我们用POM观察到银纳米粒子在向列相6OCB LC中的均匀分散。银纳米粒子聚集开始于0.75 wt%的分散。结果表明，向列相液晶中纳米粒子的浓度和外加电场对其电光和介电性能有较大影响。电导率、双折射率和介电常数的组成与纳米颗粒进入宿主6OCB液晶的温度和浓度有关。由于纯向列相液晶与银纳米粒子之间存在强烈的反平行偶极相互作用，导致介电分量减小。向列相液晶-银纳米复合材料的响应时间随着银纳米粒子浓度的增加而减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.