Title:	Enhancement in the thermodynamic, electrical and optical properties of hexabutoxytriphenylene due to copper nanoparticles
Authors:	Yaduvanshi, Priti Mishra, Avneesh Kumar, Sandeep Dhar, Ravindra
Keywords:	Columnar hexagonal phase Aromatic cores Homeotropic alignment Ionic conductivity Surface plasmons
Issue Date:	Aug-2015
Publisher:	Elsevier B.V
Citation:	Journal of Molecular Liquids, 2015, Vol. 208, p 160-164
Abstract:	In the present article, we have studied the effect of copper nano-particles on the thermal, optical and dielectric parameters of a liquid crystalline material 2,3,6,7,10,11-hexabutyloxytriphenylene (in short HAT4) showing wide temperature range (~ 65 °C) hexatic columnar mesophase. A composite has been prepared by dispersing 0.6 wt.% of copper nano-particles. UV–vis spectroscopy has been used to record the absorption spectra. It has been observed that the presence of copper nano-particles introduces surface plasmon resonance and reduces the optical band gap of HAT4. Though isotropic to mesophase transition temperature is unaffected but mesophase-crystal transition temperature has decreased and hence range of the mesophase has enhanced due to the presence of copper nano-particles. While dc conductivity has increased by about two orders of magnitudes, dielectric permittivity has also moderately increased. With the enhanced properties, HAT4-copper nano-particle composite is useful for one dimensional conduction and photovoltaic applications.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/6296
ISSN:	0167-7322
Alternative Location:	http://dx.doi.org/10.1016/j.molliq.2015.04.030
Copyright:	2015 Elsevier B.V.
Appears in Collections:	Research Papers (SCM)

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