Investigations of dual-frequency nematic liquid crystals doped with dichroic dye

被引：7

作者：

Pianelli, A. ^{[1
,2
]}

Parka, J. ^{[1
]}

Perkowski, P. ^{[1
]}

Caputo, R. ^{[2
]}

Oton, E. ^{[1
]}

Mrukiewicz, M. ^{[1
]}

Mazur, R. ^{[1
]}

Sielezin, K. ^{[1
]}

Garbat, K. ^{[1
]}

机构：

[1] Mil Univ Technol, Fac Adv Technol & Chem, Warsaw, Poland

[2] Univ Calabria, Dept Phys, Arcavacata Di Rende, Italy

来源：

LIQUID CRYSTALS | 2019年 / 46卷 / 07期

关键词：

Dual-frequency liquid crystal; relaxation frequency; crossover frequency; dielectric spectroscopy; optical characterisation; DIELECTRIC-SPECTROSCOPY; PHOTONIC STRUCTURE;

D O I：

10.1080/02678292.2018.1550821

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we studied and analysed a particular variety of liquid crystals, the so-called dual-frequency nematic liquid crystals (DFNLCs). The interest was to perform dielectric spectroscopy and optical characterisation with two pure and doped mixtures of DFNLCs. By means the dielectric spectroscopy we observed a low value of crossover frequency at room temperature for one dye doped mixture. Additionally, in the spectra studies, a scattering of light at cross-frequency, and a stable and unstable focal conical state was observed, respectively, for the investigated mixtures.

引用

页码：1001 / 1012

页数：12

共 26 条

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