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Ferroelectrics Volume 573, 2021 - Issue 1
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Research Article

Influence of Nb2O5 doping to energy-storage properties of (Na0.5Bi0.5)0.705Ba0.045Sr0.25TiO3 lead-free ferroelectric ceramics

Ruifang WuKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Linlin LiangKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Ruijie DuanKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Jinghao ZhaoKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Zekai LiKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaView further author information
,
Gang BianKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaCorrespondence[email protected] [email protected]
View further author information
&
Jing WangKeyLaboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, ChinaCorrespondence[email protected] [email protected]
View further author information
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Pages 246-255 | Received 07 Sep 2019, Accepted 14 Aug 2020, Published online: 07 Apr 2021
 
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Abstract

The powder samples of (Na0.5Bi0.5)0.705Ba0.045Sr0.25TiO3-xNb2O5 (NBBSNT) were synthesized by a wet solid-phase method. The effects of Nb-doping on morphology, ferroelectric and dielectric properties of samples were investigated. Typical surface morphologies by scanning electron microscopy for the NBTBZN ceramics showed grain size decreasing. Dielectric measurements revealed that the depolarization temperature and Curie temperature shifted to lower temperature. With the increase of Nb content, the ferroelectric hysteresis loops became much slimmer, coupled with the reduction in remnant polarization and coercive field. Energy storage density of 0.855 J/cm3 and the energy storage efficiency of 74.26% were obtained for NBBSNT with x = 0.09.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (Grant No.51302061) and Natural Science Foundation of Hebei province (Grant No. E2014201076).

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