Please use this identifier to cite or link to this item:
Title: Effect of high concentration of colloidal gold nanoparticles on the thermodynamic, optical, and electrical properties of 2, 3, 6, 7, 10, 11-hexabutyloxytryphenylene discotic liquid crystalline material
Authors: Mishra, Mukesh
Kumar, Sandeep
Dhar, Ravindra
Keywords: Band gap
Dielectric parameters
homeotropic alignment
refractive index
Issue Date: Jan-2017
Publisher: Taylor & Francis
Citation: Soft Materials, 2017, Vol.15, p 34-44
Abstract: In this work, colloidal gold nanoparticles (GNPs) have been dispersed in a plastic columnar discotic liquid crystal (DLC), namely 2,3,6,7,10,11-hexabutyloxytryphenylene (HAT4). Thermodynamic, dielectric, and optical properties of nanocomposites verify the incorporation of the nanoparticles (NPs) into columnar matrix. Due to addition of GNPs in the triphenylene-based DLC (HAT4), columnar hexagonal to isotropic liquid phase, transition temperature appreciably decreases; however, the crystal to columnar hexagonal phase transition temperature does not change drastically. Interestingly, the ionic conductivity of nanocomposite shows an increment by two orders of magnitude due to doping of GNPs. Dielectric permittivity measured parallel to the column axis in the homeotropic aligned sample has improved. Optical study suggests that band gap has decreased due to dispersion of GNPs.
Description: Restricted Access.
ISSN: 1539-445X
1539-4468 (online)
Alternative Location:
Copyright: 2017 Taylor & Francis
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
  Restricted Access
Restriced Access608.86 kBAdobe PDFView/Open Request a copy

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.