Structural and Optical Properties of Ba0.7Dy0.3Fe11.4Cr0.6O19/Polyaniline (PANI) Nanocomposites for Optoelectronics

Author:

Tchouank Tekou Carol T.,Mohammed J.,Mukhtar G.,Halilu N.,Getso R. S.,Abdullahi Z. H.,Basandrai D.,Srivastava A. K.

Abstract

Abstract M-type hexaferrites have found considerable application in microwave absorption and magnetic recording. Sol-gel auto-combustion technique was utilized to prepare Ba0.7Dy0.3Fe11.4Cr0.6O19 nano-sized particles which were sintered at 1000 °C for 6 hours. XRD patterns of the prepared sample show magnetoplumbite phase of M-type hexaferrite along with the presence of hematite (α-Fe2O3) and polyaniline. Two specific bands in the range 400-600 cm−1 were observed in the FTIR spectra signifying the formation of hexaferrites structure. The peaks corresponding to polyaniline are also present in the FTIR spectra in the range 800-1600 cm−1. FESEM analysis shows grains with shape similar to hexagonal plate embedded on the surface of polyaniline. The band gap was found to decrease from 1.96 eV to 1.59 eV.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

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