Impact of carbon quantum dots on self-assembly and dielectric relaxation modes of a room temperature tri-component fluorinated antiferroelectric liquid crystal mixture

A Iqbal, M Urbanska, RS Dąbrowski, S Kumar, R Dhar - Soft Matter, 2023 - pubs.rsc.org
We investigated the impact of carbon quantum dots (CQDs) of sizes∼ 2–5 nm in a room
temperature tri-component fluorinated antiferroelectric liquid crystal (AFLC) mixture. The …

Effect of do** of organo-soluble carbon dots on ionic relaxation and conductivity of planar anchored cyanobiphenyl based nematic liquid crystal

P Priscilla, AK Singh, P Malik, S Kumar… - Journal of Molecular …, 2024 - Elsevier
We demonstrate here the striking effect of organo-soluble carbon dots (CDs, diameter∼ 7-8
nm) on the tunability of ionic relaxation and conductivity of the host, planar anchored …

In-situ homeotropic alignment of dye doped liquid crystal molecules on multilayered self assembled nanoparticles in confined cells for next generation display devices

AR Dogra, V Sharma, P Malik, P Kumar - Optical Materials, 2024 - Elsevier
The in-situ homeotropic alignment (HA) of pure liquid crystal (LC) and dye doped LC
molecules was prepared on the multilayered self assembled silica nanoparticles (SNPs) …

Effect of do** with carbon dots on the alignment and dielectric properties of nematic liquid crystal 4-cyano-4′-pentylbiphenyl in ITO sample cells without …

P Priscilla, MR Fisch, H Meena, S Tomar… - Journal of Molecular …, 2025 - Elsevier
The melding of nanomaterials with liquid crystalline materials is at the frontier of scientific
research due to the transformative impact of nanoparticles on the functionalities of host …

Greenly synthesized titanium dioxide nanoparticles for modulation of dielectric and electro-optical properties of nematic liquid crystal

G Singh, P Malik, S Kumar, A Kumar, R Pal… - Journal of Molecular …, 2024 - Elsevier
Green synthesis of nanoparticles (NPs) is a straightforward, non-toxic, and economical
approach that serves as a substitute for the harmful effects associated with conventional NP …

Castor seed-derived luminescent carbon nanoparticles for metal ion detection and temperature sensing applications

A Kumar, I Kumar, S Kumar, A Sharma… - Physica …, 2024 - iopscience.iop.org
In the current study, castor seeds are used as a first-time natural precursor in the
hydrothermal process of making carbon nanoparticles. The produced nanoparticles have a …

Carbon dots induced homeotropic alignment in a negative dielectric nematic liquid crystal material

P Priscilla, AK Gathania, S Kumar, MR Fisch… - Nano …, 2024 - iopscience.iop.org
Recently, do** guest materials such as quantum dots (QDs) into liquid crystals (LCs) has
been of great interest since their addition substantially enhances the properties of LC and …

Unveiling molecular alignment, dielectric and electrical conductivity of an unaligned 4-octyl-4′-cyanobiphenyl liquid crystal doped with carbon dots

P Priscilla, MR Fisch, S Kumar, AK Gathania… - Colloids and Surfaces A …, 2025 - Elsevier
We report the achievement of vertical alignment in the smectic A (SmA) and nematic (N)
phases of a 4-octyl-4′-cyanobiphenyl (8CB) LC doped with carbon dots (CDs,∼ 2.8±0.72 …

Effect of CsPbBr3 perovskite quantum dots on molecular alignment, dielectric and memory effect of a cyanobiphenyl based liquid crystal

H Meena, D Varshney, S Mal, J Prakash… - Journal of Molecular …, 2024 - Elsevier
We demonstrate here the impact of do** of CsPbBr 3 perovskite quantum dots (CsPbBr 3
PQDs, diameter∼ 7–9 nm) on the molecular alignment, dielectric and memory effect of …

Effect of alkyl chain length on the dielectric and electro-optical properties of graphene quantum dots doped cyanobiphenyl based nematic liquid crystals composites

G Singh, P Malik, S Kumar, M Kumar, B Vidhani… - Journal of Molecular …, 2024 - Elsevier
The effects of alkyl chain length and do** of biocompatible/eco-friendly graphene
quantum dots (GQDs) at 0.5 wt% on the dielectric and electro-optical properties of …