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Enhanced Ferroelectric and Dielectric Properties in Bi0.5Na0.5TiO3 Doped with BaTiO3 (BNT-BT) Nanoparticles for High Energy Storage Device

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Title Enhanced Ferroelectric and Dielectric Properties in Bi0.5Na0.5TiO3 Doped with BaTiO3 (BNT-BT) Nanoparticles for High Energy Storage Device
 
Creator Kumari, Manju
Dhariwal, Neeraj
Yadav, Preety
Kumar, Vinod
Thakur, O P
 
Subject Dielectric
Energy Storage
Ferroelectric
Nanoparticles
Polarization
 
Description 667-670
Nanoparticles of lead-free Bi0.5Na0.5TiO3 doped with BaTiO3 (BNT-BT) have been fabricated by the auto-combustion
sol-gel method. A structural and morphological analysis of the developed material has been performed by using XRD and
FESEM. Also, a temperature and frequency (100Hz-1MHz) dependent dielectric study of BNT-BT nanoparticles has been
conducted, resulting in a variation that occurs at 120.83 °C due to transition from ferroelectric to antiferroelectric phase,
followed by a sudden increase due to paraelectric phase formation. Additionally, as frequency increased, the dielectric
constant decreased exhibiting Maxwell-Wagner polarization. The ferroelectric study has been done by using PE loop at
room temperature (28 °C). The maximum value obtained for remanent polarization and saturation polarization is 1.73
μC/cm2 and 3.75 μC/cm2 respectively at an applied electric field of 28 kV/cm. The value for the recoverable energy storage
density (W1) is 0.0483 J/cm3, energy loss density(W2) is 0.05378 J/cm3 and its efficiency (Ƞ) is 47% at an applied field
28 kV/cm. The obtained results for the BNT-BT nanoparticles are remarkable for energy storage devices, and they further
indicate their potential for energy harvesting and high piezoelectric sensors for industrial purposes.
 
Date 2023-12-22T11:12:31Z
2023-12-22T11:12:31Z
2023-12
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63079
https://doi.org/10.56042/ijems.v30i5.6859
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.30(5) [October]