Effect of carbon nanotubes on response time of ferroelectric liquid crystals

J. Prakash, A. Choudhary, D. S. Mehta, and A. M. Biradar
Phys. Rev. E 80, 012701 – Published 7 July 2009

Abstract

We present the results of the fast electro-optic response of multiwalled carbon nanotubes (MWCNTs)-doped deformed helix ferroelectric liquid crystal (DHFLC). The fastening of the response in MWCNTs-doped DHFLC has been attributed to the decrease in rotational viscosity and increase in anchoring energy. The decrease in the former is due to the experience of the torque both by MWCNTs and DHFLC and perturbation of order parameter of the DHFLC while the increase in the latter is due to the ππ electrons stacking between the MWCNTs, DHFLC molecules, and alignment layers. The increase in conductance in doped cells has also been observed.

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  • Received 21 October 2008

DOI:https://doi.org/10.1103/PhysRevE.80.012701

©2009 American Physical Society

Authors & Affiliations

J. Prakash1,2, A. Choudhary2, D. S. Mehta1, and A. M. Biradar2,*

  • 1Instrument Design and Development Center, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India
  • 2National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi 110 012, India

  • *Corresponding author; abiradar@mail.nplindia.ernet.in

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Vol. 80, Iss. 1 — July 2009

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