Open AccessStructural and Optical Properties of Ba0.7Dy0.3Fe11.4Cr0.6O19/Polyaniline (PANI) Nanocomposites for Optoelectronics
Author(s) -
Carol Trudel Tchouank Tekou,
J. Mohammed,
G. Mukhtar,
N. Halilu,
R. S. Getso,
Zakariyya Hassan Abdullahi,
Deepak Basandrai,
A. K. Srivastava
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1531/1/012001
Subject(s) - polyaniline , materials science , nanocomposite , hematite , fourier transform infrared spectroscopy , analytical chemistry (journal) , absorption (acoustics) , phase (matter) , band gap , hexagonal phase , absorption spectroscopy , chemical engineering , nanotechnology , composite material , polymer , chemistry , metallurgy , optics , physics , optoelectronics , chromatography , engineering , polymerization , organic chemistry
M-type hexaferrites have found considerable application in microwave absorption and magnetic recording. Sol-gel auto-combustion technique was utilized to prepare Ba 0.7 Dy 0.3 Fe 11.4 Cr 0.6 O 19 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-Fe 2 O 3 ) 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.