Abstract
In this study, Yttrium Ferrite based nano electroceramics were prepared by the doping at various ratios of graphene oxide by the hydrothermal method. The obtained doped and undoped samples were characterized by XRD, SEM, FTIR, DTA, UV-VIS-NIR spectroscopy, temperature dependent electrical resistance changes and dielectric measurements. From the XRD results, it is observed that the obtained samples are polycrystalline with an Orthorhombic structure. The crystal parameters are changed with the doping of graphene oxide. FTIR spectra indicate that the graphene oxide changes the peak intensities. This confirms the incorporation of the graphene oxide into the ceramic structure. The doping of the graphene oxide changes the optical band gaps of the samples. The dielectric constants of the samples are changed with the graphene oxide. The DC electrical conductivity measurements confirm the semiconducting behavior of the samples. The obtained results indicate that the electronic and nanostructure of the synthesized electroceramics can be controlled by the doping of graphene oxide for electronic and energy applications.
Highlights
Over the last years, research on the nano-structured electroceramics has been increasing
Pure and Graphene oxide doped Yttrium Ferrite nano electro-ceramics were synthesized by the Hydrothermal Process
In order to determine the surface morphologies of undoped and graphene oxide-doped YFeO3 samples prepared by using the hydrothermal method they were analyzed with Scanning Electron Microscope (SEM)
Summary
Research on the nano-structured electroceramics has been increasing. Hydrothermal synthesis can be preferred due to its advantages such low temperature, control of particle size, without any calcination or milling step and not purity phase [12] In this scientific study, pure and Graphene oxide doped Yttrium Ferrite nano electro-ceramics were synthesized by the Hydrothermal Process. The electrical conductivity of the samples was measured as a function of temperature using a KEITHLEY 6517A electrometer
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