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Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound; (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 for Electronic Devices

Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound;... In this study, the aim is to determine the dielectric, electrical, and ferroelectric properties of lead-free (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 (BCsFMWO) low-density ceramic (calcined material). The calcined Cs/Mn/W modified BFO material (green pellet) was prepared by a solid-state method. The compound was analyzed to be monoclinic obtained at room temperature XRD. The crystallite size was found to be 26.15 nm. The grain size of the compound is 0.632 μm. The morphology and purity were investigated by SEM and EDX. A significant behavior in εr and tan δ was observed in the temperature 25°–400 °C and frequency (10 kHz–1 MHz). The impedance behavior indicates the non-Debye-type relaxation. A careful examination of the temperature and frequency dependence of the impedance characteristics of the material shows the existence of relaxation mechanisms and a non-Debye type of conduction mechanism in it. The conductivity study (Jonscher’s power law) indicates the presence of a conduction mechanism. The P-E loop shows the ferroelectrics behavior. The Ohmic and Space Charge Limited Current conduction mechanism (SCLC) was found at low and high electric fields (voltage) under forward bias current–voltage situations. The negative temperature coefficient of resistance (NTCR) character, which applies to NTC thermistor application, is shown by calculating the temperature coefficient of resistance (TCR) and thermistor constant (β). The NTCR behavior of the compound strongly supports the material for temperature-based sensors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Transactions on Electrical and Electronic Materials Springer Journals

Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound; (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 for Electronic Devices

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References (59)

Publisher
Springer Journals
Copyright
Copyright © The Korean Institute of Electrical and Electronic Material Engineers 2024. corrected publication 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
1229-7607
eISSN
2092-7592
DOI
10.1007/s42341-023-00507-y
Publisher site
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Abstract

In this study, the aim is to determine the dielectric, electrical, and ferroelectric properties of lead-free (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 (BCsFMWO) low-density ceramic (calcined material). The calcined Cs/Mn/W modified BFO material (green pellet) was prepared by a solid-state method. The compound was analyzed to be monoclinic obtained at room temperature XRD. The crystallite size was found to be 26.15 nm. The grain size of the compound is 0.632 μm. The morphology and purity were investigated by SEM and EDX. A significant behavior in εr and tan δ was observed in the temperature 25°–400 °C and frequency (10 kHz–1 MHz). The impedance behavior indicates the non-Debye-type relaxation. A careful examination of the temperature and frequency dependence of the impedance characteristics of the material shows the existence of relaxation mechanisms and a non-Debye type of conduction mechanism in it. The conductivity study (Jonscher’s power law) indicates the presence of a conduction mechanism. The P-E loop shows the ferroelectrics behavior. The Ohmic and Space Charge Limited Current conduction mechanism (SCLC) was found at low and high electric fields (voltage) under forward bias current–voltage situations. The negative temperature coefficient of resistance (NTCR) character, which applies to NTC thermistor application, is shown by calculating the temperature coefficient of resistance (TCR) and thermistor constant (β). The NTCR behavior of the compound strongly supports the material for temperature-based sensors.

Journal

Transactions on Electrical and Electronic Materials – Springer Journals

Published: Jun 1, 2024

Keywords: Polycrystalline; Morphology; Non-Debye; Ferroelectric; NTCR

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