Controlling the Oxygen Defects Concentration in a Pure BiFeO₃ Bulk Ceramic.

ABSTRACT: BiFeO₃ is a multiferroic material with a perovskite structure that has a lot of potential for use in sensors and transducers. However, obtaining pure single-phase BiFeO₃ ceramic with a low electrical conductivity via solid-state reactions remains a problem that limits its application. In this work, the suppression of secondary phases in BiFeO₃ was studied by varying the compositional parameters and the sintering temperature. The addition of 1% Bi₂O₃ to the stoichiometric precursor mixture prevented the formation of secondary phases observed when sintering stoichiometric precursors. The pure phase ceramic had a p-type conductivity and a three-decade lower electrical conductivity as measured by impedance spectroscopy. Annealing of optima

SUBMITTER: Tuluk A 

PROVIDER: S-EPMC9571174 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature