Bi<sub>1−x</sub>Eu<sub>x</sub>FeO<sub>3</sub> Powders: Synthesis, Characterization, Magnetic and Photoluminescence Properties
Vasile-Adrian Surdu,
Roxana Doina Trușcă,
Bogdan Ștefan Vasile,
Ovidiu Cristian Oprea,
Eugenia Tanasă,
Lucian Diamandescu,
Ecaterina Andronescu,
Adelina Carmen Ianculescu
Affiliations
Vasile-Adrian Surdu
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Roxana Doina Trușcă
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Bogdan Ștefan Vasile
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Ovidiu Cristian Oprea
Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Eugenia Tanasă
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Lucian Diamandescu
National Institute of Materials Physics, 077125 Bucharest-Măgurele, Romania
Ecaterina Andronescu
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Adelina Carmen Ianculescu
Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, “Politehnica” University of Bucharest, Gh. Polizu Street no. 1-7, 011061 Bucharest, Romania
Europium substituted bismuth ferrite powders were synthesized by the sol-gel technique. The precursor xerogel was characterized by thermal analysis. Bi1−xEuxFeO3 (x = 0−0.20) powders obtained after thermal treatment of the xerogel at 600 °C for 30 min were investigated by X-ray diffraction (XRD), scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Raman spectroscopy, and Mössbauer spectroscopy. Magnetic behavior at room temperature was tested using vibrating sample magnetometry. The comparative results showed that europium has a beneficial effect on the stabilization of the perovskite structure and induced a weak ferromagnetism. The particle size decreases after the introduction of Eu3+ from 167 nm for x = 0 to 51 nm for x = 0.20. Photoluminescence spectroscopy showed the enhancement of the characteristic emission peaks intensity with the increase of Eu3+ concentration.
