Table of Contents
ISRN Nanotechnology
Volume 2013, Article ID 253016, 6 pages
http://dx.doi.org/10.1155/2013/253016
Research Article

Synthesis and Optical Characterization of Sulfonated Polyaniline/Single-Walled Carbon Nanotube/Zinc Sulphide Nanocomposite

1Nanoscience Laboratory, Department of Physics, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, India
2Carbon Nanotechnology Laboratory, Department of Physics, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, India
3APC College, New Barrackpore, Kolkata 700131, India
4National Institute of Technology-Durgapur, Durgapur 713209, India

Received 5 September 2013; Accepted 28 September 2013

Academic Editors: S. Maksimenko and Z. Shi

Copyright © 2013 Rajesh K. Agrawalla et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Polyaniline functionalized with sulfonate groups (SPANI) shows excellent solubility in water. Single-walled carbon nanotubes functionalized with carboxylic groups (f-SWCNTs) and then hybridized with freshly prepared zinc sulphide (ZnS) nanocrystals have been found to be good luminescent material with tuned emission properties. Nanocomposite of sulfonated polyaniline with embedded SWCNT/ZnS nanohybrid fibers has been prepared by a simple solution mixing process and characterized by using high resolution transmission electron microscopy (HRTEM), X-ray diffractometry, Raman spectroscopy, FTIR spectroscopy, and thermogravimetric analysis (TGA). The study of optical properties by UV-vis absorption and photoluminescence spectroscopy reveals that the composite is a luminescent material of enhanced emission intensity in the visible region of the spectrum.