Journal of Physical Chemistry and Functional Materials

Yazarlar: Cihat AYDIN, Handan AYDİN, Mustafa TAŞKIN

Konular:Malzeme Bilimleri, Ortak Disiplinler

Anahtar Kelimeler:Bismuth Ferrite,Graphene Oxide,Hummers Method,Hydrothermal Process,Nano electroceramics

Özet: Nano electroceramic samples of Bismuth Ferrite/Graphene Oxide were prepared by the hydrothermal process. The crystalline structure, morphological properties, electrical and optical properties of samples were investigated. X-ray results confirm that all the BFO nanopowders are polycrystalline with a cubic structure. The crystallite sizes and lattice parameters values of the samples were calculated. SEM and TEM results indicate that the Bismuth ferrite/Graphene oxide powders have nanostructure. The average grain size values of the powders were found to be 351, 337, 411 and 371nm for BF0, BFO20, BFO50 and BFO100 samples, respectively. The effects of the Graphene oxide doped on the Bismuth ferrite are resulted in a change of grain size. The optical band gaps of the nano electroceramics were calculated for the various amount of Graphene oxide. The optical constants of the Bismuth Ferrite were changed with Graphene oxide doping. The room temperature dielectric measurement with frequency reveals the dielectric constant and loss are affected with increasing frequency for BFO nanoceramics. The alternating current conductivity of the as-synthesized nano electroceramics increases with the increasing frequency. The obtained results suggest that the structural, optical and electrical properties of BFO can be controlled and changed by Graphene Oxide doping. 

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