najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2019-10-3-243-254najo-549Research ArticlePHYSICSФИЗИКАOrientational order parameter of liquid crystalline nanocomposites by Newton’s rings and image analysis methodsMunavarH. M.

Munavar Hussain M.

Bengaluru

munavar.phd@gmail.comDoreswamyB. H.

Bengaluru

ShobhaN. C.

Bengaluru

VijayakumarV. N.

Sathyamangalam

FakruddinK.

Ramanagara

Department of Physics, KNS Institute of TechnologyIndiaDepartment of Physics, SJB Institute of TechnologyIndiaDepartment of Physics, APS College of EngineeringIndiaDepartment of Physics,Bannari Amman Institute of TechnologyIndiaDepartment of Physics, Ghousia College of EngineeringIndia201907082025103243254Copyright © Munavar H.M., Doreswamy B.H., Shobha N.C., Vijayakumar V.N., Fakruddin K., 20252025Munavar H.M., Doreswamy B.H., Shobha N.C., Vijayakumar V.N., Fakruddin K.Munavar H.M., Doreswamy B.H., Shobha N.C., Vijayakumar V.N., Fakruddin K.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/549

Liquid crystalline nanocomposites are prepared by dispersing TiO2, ZnO, Fe2O3 and Fe3O4 nanoparticles separately in 4-Cyano 4’-Propoxy-1, 1’-Biphenyl (3O-CB) liquid crystal in a 1:100 ratio. The characteristic textures exhibited are captured at different liquid crystalline phases by using POM. The phase transition temperatures are measured by both polarizing optical microscope (POM) and differential scanning calorimeter (DSC). The optical textures are analyzed by using MATLAB software to compute birefringence and order parameter of samples. The birefringence and order parameter also measured by conventional Newton’s rings technique, the results are discussed.

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