najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2021-12-4-453-461najo-491Research ArticlePHYSICSФИЗИКАInfluence of silver and gold nano particles on luminance properties of n-hexyloxy-cynobiphenyl liquid crystal through image analysisВлияние наночастиц серебра и золота на люминесцентные свойства жидкого кристалла n-гексилоксицинобифенила посредством анализа изображенийRoopaD. R.

Bengaluru, Karnataka

SubhanC. M.

Anantapur, Andhra Pradesh.

FakruddinK.

Ramanagaram, Karnataka.

drfakruddin2008@gmail.comPardhasaradhiP.

Vaddeswaram, Guntur.

MadhavB. T.P.

Vaddeswaram, Guntur.

SrilekhaG.

Vaddeswaram, Guntur

Department of Physics, SJB Institute of TechnologyIndiaDepartment of Physics, SV Degree and PG CollegeIndiaDepartment of Physics, Ghousia College of EngineeringIndiaDepartment of ECE, Koneru Lakshmaiah Education FoundationIndia202104082025124453461Copyright © Roopa D.R., Subhan C.M., Fakruddin K., Pardhasaradhi P., Madhav B.T., Srilekha G., 20252025Roopa D.R., Subhan C.M., Fakruddin K., Pardhasaradhi P., Madhav B.T., Srilekha G.Roopa D.R., Subhan C.M., Fakruddin K., Pardhasaradhi P., Madhav B.T., Srilekha G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/491

In this work, gold and silver nanoparticles are separately dispersed in n-hexyloxy-cyanobiphenyl (6O.CB) liquid crystal in the ratio 1:100. The optical textures of pure and nano-dispersed compounds are recorded by using polarizing optical microscope. Differential scanning calorimeter (DSC) is used to compute enthalpy and transition temperature values. Due to the dispersion of nanoparticles, the clearing temperature of the compounds are slightly reduced but there is no significant change in the nematic phase exhibited by pure 6O.CB. Further characterization is done by various spectroscopic techniques like scanning electron microscopy (SEM) and X-ray diffraction (XRD). The optical textures have been analyzed using MATLAB software for the evaluation of display parameters viz., Luminance, Luminance coefficient, Luminance uniformity and Contrast ratio.

В данной работе наночастицы золота и серебра по отдельности диспергированы в жидком кристалле н-гексилоксицианобифенила (6O.CB) в соотношении 1:100. Оптические текстуры чистых и нанодисперсных соединений регистрируют с помощью поляризационного оптического микроскопа. Дифференциальный сканирующий калориметр (ДСК) используется для вычисления значений энтальпии и температуры перехода. Из-за диспергирования наночастиц температура очистки соединений немного снижается, но не происходит значительных изменений в нематической фазе, проявляемых чистым 6O.CB. Дальнейшая характеристика проводится с помощью различных спектроскопических методов, таких как сканирующая электронная микроскопия (СЭМ) и рентгеновская дифракция (РД). Оптические текстуры были проанализированы с использованием программного обеспечения MATLAB для оценки параметров отображения, а именно яркости, коэффициента яркости, однородности яркости и коэффициента контрастности.

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The authors declare that there are no conflicts of interest present.