https://doi.org/10.1140/epjp/i2016-16007-9
Regular Article
Structural and optical modifications of the Ag2WO4/CoPc nanocomposite for potential applications
1
Dept. of Applied Science and Humanities, Thejus Engineering College, Thrissur, 680584, Kerala, India
2
Nanoscience Research Centre (NSRC), Dept. of Physics, Nirmala College, Muvattupuzha, 686 661, Kerala, India
3
Research and Development Centre, Bharathiar University, 641 046, Coimbatore, India
* e-mail: nanoncm@gmail.com
Received:
1
December
2015
Accepted:
3
December
2015
Published online:
13
January
2016
The silver tungstate/cobalt phthalocyanine nanocomposite (Ag2WO4/CoPc was prepared by the simple solvent evaporation method. The as-synthesized nanocomposite was characterized by thermo gravimetric and differential thermal analysis, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, photoluminescence spectroscopy and Raman spectroscopy. The structural characterization confirms the formation of the Ag2WO4/CoPc nanocomposite. The ultraviolet-visible spectrum for the Ag2WO4/CoPc nanocomposite shows extended visible absorption in the wavelength range 670-735nm. Photoluminescence spectrum of the nanocomposite shows large intensity and violet-blue emission when excited with near-ultraviolet light. The present study suggests that the synthesized Ag2WO4/CoPc nanocomposite can be a promising material for constructing light emitting diodes, solar cells and optoelectronic devices.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2016