TY - JOUR
T1 - Modified dynamical equation for dye doped nematic liquid crystals
AU - Manohar, Rajiv
AU - Misra, Abhishek Kumar
AU - Srivastava, Abhishek Kumar
PY - 2010/4/15
Y1 - 2010/4/15
N2 - Dye doped liquid crystals show changed dielectric properties in comparison to pure liquid crystals. These changes are strongly dependent on the concentration of dye. In the present work we have measured dielectric properties of standard nematic liquid crystals E-24 and its two guest host mixtures of different concentrations with Anthraquinone dye D5. The experimental results are fitted using linear response and in the light of this we have proposed some modifications in the dynamical equation for the nematic liquid crystals by introducing two new variables as dye concentration coefficients. The limitations of the proposed equation in high temperature range have also been discussed. With the help of the proposed dynamical equation for the guest-host liquid crystals (GHLCs) it is possible to predict the various parameters like rotational viscosity, dielectric anisotropy and relaxation time for GHLCs at other concentrations of dye in liquid crystals theoretically.
AB - Dye doped liquid crystals show changed dielectric properties in comparison to pure liquid crystals. These changes are strongly dependent on the concentration of dye. In the present work we have measured dielectric properties of standard nematic liquid crystals E-24 and its two guest host mixtures of different concentrations with Anthraquinone dye D5. The experimental results are fitted using linear response and in the light of this we have proposed some modifications in the dynamical equation for the nematic liquid crystals by introducing two new variables as dye concentration coefficients. The limitations of the proposed equation in high temperature range have also been discussed. With the help of the proposed dynamical equation for the guest-host liquid crystals (GHLCs) it is possible to predict the various parameters like rotational viscosity, dielectric anisotropy and relaxation time for GHLCs at other concentrations of dye in liquid crystals theoretically.
KW - Dielectric properties
KW - Guest host interaction
KW - Liquid crystals
KW - Nematics
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000276667400005
UR - https://openalex.org/W2024271812
UR - https://www.scopus.com/pages/publications/77649234505
U2 - 10.1016/j.physb.2010.01.072
DO - 10.1016/j.physb.2010.01.072
M3 - Journal Article
SN - 0921-4526
VL - 405
SP - 1964
EP - 1968
JO - Physica B: Physics of Condensed Matter
JF - Physica B: Physics of Condensed Matter
IS - 8
ER -