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Published in: Journal of Materials Science 7/2024

20-02-2024 | Electronic materials

Optimizing dielectric energy storage properties of BNT-based relaxor ferroelectric ceramics modified via Ba0.4Sr0.6TiO3

Authors: Wen Zhu, Zong-Yang Shen

Published in: Journal of Materials Science | Issue 7/2024

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Abstract

Low-voltage driven ceramic capacitor applications call for relaxor ferroelectric ceramics with superior dielectric energy storage capabilities. Here, the (Bi0.5Na0.5)0.65(Ba0.3Sr0.7)0.35(Ti0.98Ce0.02)O3 + x wt% Ba0.4Sr0.6TiO3 (BNBSTC + xBST, x = 0, 2, 4, 6, 8, 10) ceramics were prepared to systematically investigate the effect of BST content on the phase structure, microscopic morphology and dielectric energy storage properties. A single perovskite structure with a dense and homogenous microstructure is presented in all BNBSTC + xBST ceramics. A recoverable energy storage density Wrec = 1.39 J/cm3 with efficiency η = 81.5% is achieved only under a low electric field of 94 kV/cm in the optimal composition of x = 6, accompanied by an enhanced dielectric temperature stability meeting the requirement of wider working window. In addition to good frequency, anti-fatigue and temperature stability, the BNBSTC + 6BST ceramics exhibit tremendous potential for designing low-voltage driven energy storage ceramic capacitors.

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Literature
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go back to reference Li Z, Yang Q, Wang C, Zhang J, Wang Z, Gao B, Li Z, Wang Z et al (2023) A brief review of sodium bismuth titanate-based lead-free materials for energy storage: solid solution modification, metal/metallic oxide doping, defect engineering and process optimizing. Crystals 13(2):295. https://doi.org/10.3390/cryst13020295CrossRef Li Z, Yang Q, Wang C, Zhang J, Wang Z, Gao B, Li Z, Wang Z et al (2023) A brief review of sodium bismuth titanate-based lead-free materials for energy storage: solid solution modification, metal/metallic oxide doping, defect engineering and process optimizing. Crystals 13(2):295. https://​doi.​org/​10.​3390/​cryst13020295CrossRef
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Metadata
Title
Optimizing dielectric energy storage properties of BNT-based relaxor ferroelectric ceramics modified via Ba0.4Sr0.6TiO3
Authors
Wen Zhu
Zong-Yang Shen
Publication date
20-02-2024
Publisher
Springer US
Published in
Journal of Materials Science / Issue 7/2024
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-024-09444-4

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