THE EFFECT OF GRAPHENE OXIDE ON THE STRUCTURAL AND ELECTRICAL PROPERTIES OF YTTRIUM FERRITE BASED NANOPOWDERS

Öz

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.

Anahtar Kelimeler

• Hydrothermal method,Graphene oxide,Hummers method,Nano electroceramic,structural properties

Kaynakça

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