Eur. Phys. J. B (2017) 90: 102
https://doi.org/10.1140/epjb/e2017-80149-9

Regular Article

Synthesis and characterization of silver tungstate/iron phthalocyanine nanocomposite for electronic applications

¹ Dept. of Applied Science and Humanities, Thejus Engineering College, Thrissur 680 584, Kerala, India
² Nanoscience Research Centre (NSRC), Dept. of Physics, Nirmala College, Muvattupuzha 686 661, Kerala, India
³ Dept. of Optoelectronics, University of Kerala, Trivandrum 695 581, Kerala, India

^a e-mail: ptvarghese07@yahoo.co.in

Received: 13 March 2017
Received in final form: 27 March 2017
Published online: 5 June 2017

Abstract

Silver tungstate/iron phthalocyanine nanocomposite (Ag₂WO₄/FePc) was prepared by simple solvent evaporation method. Thermodynamic stability of the synthesized nanocomposite was studied by thermogravimetric analysis. The nanocomposite was structurally characterized by X-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. The results confirm the formation of Ag₂WO₄/FePc nanocomposite. The size and morphology of the prepared nanocomposite were analyzed by scanning electron microscopy and high-resolution transmission electron microscopy. The optical properties were analyzed by ultraviolet-visible and photoluminescence spectroscopic techniques. UV-visible absorption studies indicate that Ag₂WO₄/FePc nanocomposite has extended visible absorption in the wavelength range 662 to 782 nm. The nanocomposite shows high emission intensity and greenish-blue emission when excited with near-ultraviolet light. The resistivity of the sample was measured at different temperatures. The dielectric constant, dielectric loss and AC conductivity values were measured in the frequency range 100 Hz–20 MHz. The results obtained from thermal, structural, optical and electrical characterization suggests that the synthesized Ag₂WO₄/FePc nanocomposite can be used as a potential material for varied optoelectronic and solid state applications. The present study constitutes the first report for the synthesis and characterization of Ag₂WO₄/FePc nanocomposite.