Open AccessA comparative study of temperature dependent impedance analysis for AFe0.97Zr0.03O3 (A = La, Bi) compounds
Author(s) -
A. Iqbal,
Djoko Triyono,
Aflahannisa,
Ismi Purnamasari
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1816/1/012066
Subject(s) - materials science , dielectric spectroscopy , bismuth ferrite , scanning electron microscope , perovskite (structure) , analytical chemistry (journal) , doping , ferrite (magnet) , spectroscopy , grain size , bismuth , multiferroics , mineralogy , electrochemistry , crystallography , dielectric , metallurgy , electrode , composite material , chemistry , ferroelectricity , physics , optoelectronics , chromatography , quantum mechanics
The interest of LaFeO 3 among perovskite inorganic materials increased tremendously due to their applicability ranging from chemical sensors, electrode material, etc. In previous studies, Bi-doped in La site improved the electrochemical performance and reduced the interfacial polarization resistance. Zr doped in the Fe site also improves electrical properties. In this study, LaFe 0.97 Zr 0.03 O 3 and BiFe 0.97 Zr 0.03 O 3 material have been successfully synthesized using the sol-gel method to observe the morphology and electrical properties in several temperatures. Characterization of the material was carried out by Scanning Electron Microscope (SEM), Energy Dispersive X-ray spectra (EDX), and Impedance Spectroscopy (IS). SEM results represent the non-uniform grain distribution morphology with estimated size to be 147 nm and 204 nm for LaFe 0.97 Zr 0.03 O 3 and BiFe 0.97 Zr 0.03 O 3 , respectively. EDX characterization shows that the material is only composed of its constituent elements. The Impedance spectroscopy data show that BiFe 0.97 Zr 0.03 O 3 better than LaFe 0.97 Zr 0.03 O 3 in electrical properties because Bismuth ferrite (BiFe 0.97 Zr x O 3 ) has multiferroics properties.