Impact of gadolinium doping on BiFeO3-PbZrO3 for energy storage applications: Structural, microstructural, and thermistor properties

[Display omitted] •The solid-state reaction technique is used to prepare the Gd-doped BiFeO3-PbZrO3.•XRD data were used to compute structural characteristics, such as dislocation density, microstrain, crystallite size, and percentage of crystallinity.•The SEM micrographs indicate the spherical, tigh...

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Published inInorganic chemistry communications Vol. 166; p. 112626
Main Authors Mallick, Priyambada, Kumari Yadav, Sandhya, Satpathy, Santosh Kumar, Behera, Banarji, Moharana, Srikanta, Sagadevan, Suresh
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2024
Subjects
AC conductivity
Bismuth ferrite
Density of states
Gadolinium
NTC thermistor
SDG9
XRD
NTC thermistor
Density of states
SDG9
AC conductivity
Gadolinium
Bismuth ferrite
XRD
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Summary:[Display omitted] •The solid-state reaction technique is used to prepare the Gd-doped BiFeO3-PbZrO3.•XRD data were used to compute structural characteristics, such as dislocation density, microstrain, crystallite size, and percentage of crystallinity.•The SEM micrographs indicate the spherical, tightly packed nature of materials with limited porosity.•The extent to which the composites work at high temperatures (175–400 °C) as NTC thermistors.•Based on the frequency- and temperature-dependent AC conductivity of the composites, a high density of states was calculated. The solid-state reaction technique is used to prepare the Gd-doped BiFeO3-PbZrO3 at concentrations x = 0.05, 0.10, 0.15, and 0.20 with chemical formula 0.5(BiGdxFe1-xO3)-0.5(PbZrO3). Room-temperature XRD data are used to compute structural characteristics, such as dislocation density, microstrain, crystallite size, and percentage of crystallinity. The SEM micrographs indicate the spherical, tightly packed nature of materials with limited porosity. The extent to which the composites work at high temperatures (175–400 °C) as NTC thermistors. Understanding the properties of the NTC thermistor requires the calculation of the resistor constant, sensitivity index, and activation energies. Based on the frequency- and temperature-dependent AC conductivity of the composites, a high density of states was calculated.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2024.112626