Dielectric and electrical properties of synthesized PBGO/Fe3O4 nanocomposite

Graphene ferrites have attracted great attention due to their high conductivity and large specific area. Now, the modern age demands some new materials which have a low weight, less cost and have great mechanical strength. Graphene is the best suggestion to meet this criteria. Here, graphene oxide (GO) was synthesized with Hummer's method. Prussian Blue (PB) and Fe3O4 nanoparticles were doped in graphene oxide with the Massart method. XRD spectra were used to analyze the structural properties. Peaks of XRD spectra at 2 theta = 24.16 degrees, 30.01 degrees, 35.27 degrees, 39.29 degrees, 43.37 degrees,53.82 degrees, and 57.14 degrees confirmed the formation of PB and Fe3O4 nanoparticles in graphene oxide. Electronic transition properties were studied through UV-visible spectroscopy and a peak of pi to pi* transition is detected at 198.9 nm in PBGOF. Due to charge transformation between carbon network, magnetite and PB, the strong shifted peak is detected in PBGOF in PL spectra at 439.2 nm. At lower frequency the dielectric properties exhibit higher values of permittivity and vary as a function of frequency. Electrical properties investigated through impedance spectroscopy and material show increment in electrical behavior. AC resistivity exhibit the small resistance and high conductive properties of the material with the increase of frequency. There is an expectation that with the introduction of magnetite in Graphene, the dielectric properties enhanced dramatically. Our finding revealed that our material has many possible applications in electrical and electronic devices etc.

Automated summary

The study successfully prepared graphene ferrites through synthesis and doping methods, and analyzed its structure and electronic properties using XRD, UV-visible spectroscopy, etc., confirming the formation of PB and Fe3O4 nanoparticles in graphene. Electrical property investigations showed that the material exhibits good conductivity and dielectric properties.