Prediction of the density-pressure-temperature behavior of the 5CB Liquid Crystal, at the Isotropic-Nematic phase transition

In this work, we have analyzed of density-pressure-temperature behavior at the Isotropic-Nematic phase transition of the 5CB liquid crystal at 1 atm by using a first-order perturbation theory for Convex Peg HERSW model. We predicted quantitatively the experimental behavior in this region of the diagram phase.

Enhancement of Birefringence in Reduced Graphene Oxide Doped Liquid Crystal

We investigated the effect of reduced graphene oxide (rGO) doping on the birefringence of 5CB liquid crystal (LC). The characteristics of the synthesized rGO and LC-rGO composite with different rGO concentrations were analyzed by atomic force microscopy, X-ray photoelectron spectroscopy, white light polarized microscopy, voltage-dependent transmission measurement, and differential scanning calorimetry. We found that doping LC with an appropriate concentration of rGO enhances the birefringence of the LC. This is mainly due to the improved anisotropy of polarizability, which stems from the high shape anisotropy of rGO. However, the aggregation of rGO reduces the birefringence by decreasing the anisotropy of polarizability as well as the order parameter. Our study shows the promising potential of LC-rGO for developing various electro-optic devices that offer improved electro-optic effects.

Deciphering the near-field response with the far-field wavelength-scanned SERS spectra of 4-mercaptopyridine adsorbed on gold nanocolloidal particles entrapped in Langmuir Reverse Schaefer film of 5CB liquid crystal molecules

Wavelength-scanned SERS spectra of 4-mercaptopyridine molecule adsorbed on gold nanoparticles immobilised in a Langmuir Reverse Schaefer film of 5CB molecules.