Enhancement of the display parameters of 4′-pentyl-4-cyanobiphenyl due to the dispersion of functionalised gold nano particles

AS Pandey, R Dhar, S Kumar, R Dabrowski - Liquid Crystals, 2011 - Taylor & Francis
We report electro-optical and dielectric studies of the gold nano particle (GNP) dispersed
room-temperature liquid crystalline material 4′-pentyl-4-cyanobiphenyl (5CB) at a …

Comments on the fitting of Cole-Cole/Havriliak-Negami equation with the dielectric data under the influence of parasitic effects in order to extract correct parameters of …

R Dhar - Journal of Molecular Liquids, 2021 - Elsevier
Extracting correct results from the electrical data acquired from the measuring instruments
are many times very tedious exercise. Most often extreme low and high frequency measured …

On the relaxation dynamics of a double glass-forming antiferroelectric liquid crystal

A Drzewicz, M Jasiurkowska-Delaporte… - Physical Chemistry …, 2021 - pubs.rsc.org
The relaxation dynamics in the thermodynamic states of the glass-forming antiferroelectric
liquid crystal (S)-4′-(1-methyloctyloxycarbonyl) biphenyl-4-yl 4-[7-(2, 2, 3, 3, 4, 4, 4 …

Optimization of the display parameters of a room temperature twisted nematic display material by doping single-wall carbon nanotubes

R Dhar, AS Pandey, MB Pandey, S Kumar… - Applied physics …, 2008 - iopscience.iop.org
Single-wall carbon nanotubes (SWCNTs) have been doped in the nematic matrix of a room
temperature liquid crystalline material 4-(trans-4'-n-hexylcyclohexyl) isothiocyanatobenzene …

Dielectric and Electro‐Optical Properties of Antiferroelectric Liquid Crystalline Materials

MB Pandey, R Verma, R Dhar - Israel Journal of Chemistry, 2012 - Wiley Online Library
Antiferroelectric liquid crystals (AFLCs) are a recent class of materials in the family of liquid
crystals which have high prospect of application in displays with better results as compared …

Electro-optical and dielectric relaxation studies of an antiferroelectric liquid-crystal mixture (W-132A)

AK Srivastava, VK Agrawal, R Dabrowski… - Journal of applied …, 2005 - pubs.aip.org
Electro-optical properties and dielectric relaxation phenomenon have been investigated for
antiferroelectric liquid-crystal mixture W-132A exhibiting Sm A*⁠, Sm C*⁠, and wide …

Phase Transitions and recent advances in liquid-crystals research

MB Pandey, R Dhar, VK Wadhawan - Phase Transitions, 2009 - Taylor & Francis
During the past few years, the journal Phase Transitions has attracted a good number of
articles from the liquid-crystals community. On the occasion of the 30th anniversary of the …

Characteristic switching and dielectric parameters of ferro-and anti-ferroelectric phases of (S)-(+)-(1-methylheptyloxycarbonyl) phenyl 4′-(6 …

A Dwivedi, R Dhar, R Dabrowski… - Journal of Physics D …, 2009 - iopscience.iop.org
We have studied spontaneous polarization, switching time and dielectric parameters
(namely dielectric strength, relaxation frequency, distribution parameter) of a 5 µm thick …

Characteristic dielectric behaviour of the wide temperature range twist grain boundary phases of unsymmetrical liquid crystal dimers

MB Pandey, R Dhar, AS Achalkumar… - Journal of Physics …, 2007 - iopscience.iop.org
The investigated optically active dimeric compound, 4-n-undecyloxy-4'-(
cholesteryloxycarbonyl-1-butyloxy) chalcone, shows wide temperature ranges of two twist …

[HTML][HTML] Dielectric behaviour of pure and dye doped nematic liquid crystal BKS/B07

R Manohar, S Manohar, VS Chandel - Materials Sciences and …, 2011 - scirp.org
The dielectric properties of pure nematic liquid crystal (BKS/B07) and dye doped
(Rhodamine B and Anthraquinone) nematic liquid crystal have been investigated in a wide …