Optical Behaviour Of CdS Nanorods Dispersed In Liquid Crystal

J.S. Roy1, T. Pal Majumder1*, R. Dabrowski2, B.K. Mahato3, A. Barman

1Department of Physics, University of Kalyani, Kalyani 741235, West Bengal, India

2Institute of Chemistry, Military University of Technology, Warsaw 0090, Poland

3Department of Materials Science, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098, India

Adv. Mater. Lett., 2015, 6 (1), pp 47-50

DOI: 10.5185/amlett.2015.5599

Publication Date (Web): Dec 28, 2014

E-mail: tpm@klyuniv.ac.in, tpmajumder1966@gmail.com

Abstract


The optical properties of CdS nanorods have been modified in presence of antiferroelectric liquid crystals (AFLC). The effective refractive index of the CdS nanorods has been increased from 2.468 to 2.499 due to presence of AFLC molecules. The change in optical band gap of the CdS nanorods dispersed in AFLC causes the increment of refractive index of the CdS nanorods. The optical band gap of the CdS nanorods has been shifted from 2.61 eV to 2.52 eV due to presence of AFLC. We have also observed the enhanced photoluminescence (PL) intensity and red shift in emissive energy band of CdS nanorods dispersed in AFLC.

Keywords

CdS nanorods, liquid crystals, optical property.

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