Introduction of bifeo3 nanoparticles in 5cb nematic liquid crystal host: Effect on texture and the non responsive behaviour of the sample in a twisted nematic configuration

Subhojyoti Sinha, Ayan Mukherjee, Sanat Kumar Chatterjee, Ajit Kumar Meikap, Soumen Basu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Here we report the introduction of multiferroic BiFeO3 nanoparticles in a 5CB nematic liquid crystal host having positive dielectric anisotropy. The BiFeO3 nanoparticles had an average diameter of *50 nm and were prepared by modified Pechini method. Its effect on the Schlieren Texture and the formation of the isolated stripe domains was observed under optical polarizing microscope. When the sample was poured into a 90° twisted nematic cell and observed under an optical polarizing microscope in cross polarizer configuration it yielded normally black state in contradiction to the expected normally white and remains unchanged even with the application of external voltage. The polarizing microscope photograph of the cell observed under parallel polarizer configuration suggests the accommodation of the nanoparticles along the cell wall grooves.

Original languageEnglish
Title of host publicationAdvanced Nanomaterials and Nanotechnology - Proceedings of the 2nd International Conference on Advanced Nanomaterials and Nanotechnology
EditorsP.K. Giri, D.K. Goswami, A. Perumal
PublisherSpringer Science and Business Media, LLC
Pages111-116
Number of pages6
ISBN (Print)9783642342158
DOIs
StatePublished - 2013
Externally publishedYes
Event2nd International Conference on Advanced Nanomaterials and Nanotechnology, ICANN 2011 - Guwahati, India
Duration: 8 Dec 201110 Dec 2011

Publication series

NameSpringer Proceedings in Physics
Volume143
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference2nd International Conference on Advanced Nanomaterials and Nanotechnology, ICANN 2011
Country/TerritoryIndia
CityGuwahati
Period8/12/1110/12/11

Bibliographical note

Publisher Copyright:
© 2013, Springer Science and Business Media, LLC. All rights reserved.

Keywords

  • Bismuth ferrite nanoparticles
  • Isolated stripe domains
  • Nematic liquid crystal
  • Schlieren texture
  • TN cell

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