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Dielectric properties and device performance of (Pb0.7 Dy0.15 Bi0.15)(Fe0.3Ti0.7)O3 electronic material

Dielectric properties and device performance of (Pb0.7 Dy0.15 Bi0.15)(Fe0.3Ti0.7)O3 electronic... A dysprosium-modified BiFeO3-PbTiO3 electronic sample [chemical composition of (Pb0.7 Dy0.15 Bi0.15)(Fe0.3Ti0.7)O3] is synthesized through high-temperature mixed oxide/solid-state reaction route. The resistive, conducting, and capacitive behaviour of the fabricated sample is examined in various experimental conditions. The structural evaluation of the specimen is conducted using X-ray diffraction (XRD) data confirming the tetragonal symmetry. The microstructural study reveals the polycrystalline nature of the prepared electronic system. The AC conductivity of the material gives information on the conduction process of the sample. Analysis of impedance spectroscopy data indicates the presence of a non-Debye type of relaxation process in the material. The existence of electric polarization loop affirms the presence of ferroelectric characteristics of the material at room temperature. The material has a low tangent loss, high dielectric permittivity and remnant polarization properties of 0.03, 450 and 0.014 μC/cm2, respectively, at room temperature. The preliminary investigation of performance parameter of the sample (i.e., Dy-modified BiFeO3-PbTiO3) shows enhanced electrical properties, thus formulating it as stronger entrant for functional devices. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Australian Ceramic Society Springer Journals

Dielectric properties and device performance of (Pb0.7 Dy0.15 Bi0.15)(Fe0.3Ti0.7)O3 electronic material

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Publisher
Springer Journals
Copyright
Copyright © Australian Ceramic Society 2020
ISSN
2510-1560
eISSN
2510-1579
DOI
10.1007/s41779-020-00506-9
Publisher site
See Article on Publisher Site

Abstract

A dysprosium-modified BiFeO3-PbTiO3 electronic sample [chemical composition of (Pb0.7 Dy0.15 Bi0.15)(Fe0.3Ti0.7)O3] is synthesized through high-temperature mixed oxide/solid-state reaction route. The resistive, conducting, and capacitive behaviour of the fabricated sample is examined in various experimental conditions. The structural evaluation of the specimen is conducted using X-ray diffraction (XRD) data confirming the tetragonal symmetry. The microstructural study reveals the polycrystalline nature of the prepared electronic system. The AC conductivity of the material gives information on the conduction process of the sample. Analysis of impedance spectroscopy data indicates the presence of a non-Debye type of relaxation process in the material. The existence of electric polarization loop affirms the presence of ferroelectric characteristics of the material at room temperature. The material has a low tangent loss, high dielectric permittivity and remnant polarization properties of 0.03, 450 and 0.014 μC/cm2, respectively, at room temperature. The preliminary investigation of performance parameter of the sample (i.e., Dy-modified BiFeO3-PbTiO3) shows enhanced electrical properties, thus formulating it as stronger entrant for functional devices.

Journal

Journal of the Australian Ceramic SocietySpringer Journals

Published: Jul 23, 2020

References