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Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound; (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 for Electronic Devices
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Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound; (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 for Electronic Devices
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Journal Article
Structural, Dielectric, Electrical, Leakage Current Behavior of Calcined Compound; (Bi1/2Cs1/2)(Fe1/3Mn1/3W1/3)O3 for Electronic Devices
2024
Overview
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 ε
r
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.
Publisher
The Korean Institute of Electrical and Electronic Material Engineers (KIEEME),Springer Nature B.V
