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Title: Tailoring of cholesteric plane spacing, dielectric relaxation and optical properties of high temperature chiral nematic phase by UV irradiation
Authors: Singh, Dharmendra Pratap
Vimal, Tripti
Gupta, Swadesh Kumar
Varia, M.C.
Kumar, Sandeep
+3 Co-authors
Issue Date: 19-Feb-2016
Publisher: Taylor & Francis
Citation: Molecular Crystals and Liquid Crystals, 2016, Vol. 625, p1-10
Abstract: The effect of Ultra Violet (UV) irradiation on the high temperature chiral nematic (N*) mesophase has been investigated. The controlled UV exposure produced bending in rod shape molecules. The bending of molecules affects their long molecular axis; therefore, the relaxation mode associated with the rotation of molecules along the long molecular axis shifts toward the higher frequency. The UV irradiation also increases the cholesteric plane spacing of N*LC molecules. The a.c. conductivity of N*LC has been increased enormously after UV irradiation. The efficiency of opto-dielectric effect has also been evaluated with the variation of bias voltage in the present investigation.
Description: Restricted Access.
ISSN: 1542-1406
1563-5287 (Online)
Alternative Location:
Copyright: 2016 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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