Synthesis and characterization of Bi٠/٨٥Ba٠/١٥-xLaxFeO٣ x = ٠.٠, ٠.٠٥, ٠.١٥ nano particle

Double oxide of bismuth ferrite with formula BiFeO٣,crystalized in Provskite structure and rhombohedral system.This compound is important dueto their structural features, multiferroic, electrical, andphotocatalytic properties; hence, they have been studied widly in various fields of science during thelast century. In the present research, five delafossite compounds, BiFeO٣ nanoparticles and bismuth ferrite doped with Ba and La, have been synthesized via solgeltechnique. X-ray diffraction spectroscopy was used to identify the compounds.It shows that the structure of these compounds are rhombohedral andthe size of nanoparticles determined by transmission electron microscope (TEM) and Sherrer equation. Thermogravimetric analysis (DTA) and infrared spectroscopy were used to obtain optimum calcination temperature and to confirm the accuracy ofsynthesized sample Bi٠/٨٥Ba٠/١٠La٠/٠٥FeO٣,respectively. With using of uv-vis spectroscopy and Vibrating Sample Magnetometer (VSM) its opticaland magnetic properties were examined. The results show a strong absorption in the visible region and ferromagnetic behavior of the sample. Finally, semiconducting property determined with measurement of resistance.

کلیدواژه ها:

BiFeO٣ ، Nano Particles ، Charaterzation Ferrite Bismuth ، Barium infulonce ، Lanthanum doped