Effect of BaZrO3 amounts on the domain structure and electrical properties of lead-free piezoelectric KNN-based films

Chen, Wen; Wang, Lingyan; Ren, Wei; Zhao, Jinyan; Wang, Zhe; Quan, Yi; Zhuang, Jian

doi:10.1016/j.mseb.2021.115552

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Materials Science and Engineering: B

2022

DOI: 10.1016/j.mseb.2021.115552

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Effect of BaZrO3 amounts on the domain structure and electrical properties of lead-free piezoelectric KNN-based films

Wen Chen

Lingyan Wang

Wei Ren

et al.

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Cited by 4 publications

References 41 publications

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Texture performance of lead-free Bi1/2Na1/2TiO3–BaZrO3 ceramics

Hussain

Maqbool

Malik

et al. 2023

Ceramics International

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Texture performance of lead-free Bi1/2Na1/2TiO3–BaZrO3 ceramics

Hussain

Maqbool

Malik

et al. 2023

Ceramics International

View full text Add to dashboard Cite

The structure and electronic properties closely related to piezoelectricity of BaZrO3-modified K0.5Na0.5NbO3 lead-free ceramics: First-principle study

Li,

Lei,

Long

et al. 2024

Ceramics International

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Excellent temperature stability of energy storage performance by weak dipolar interaction strategy

Long

et al. 2022

Applied Physics Letters

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High-performance dielectric materials are widely used in energy storage applications, and temperature stability at extreme conditions is rarely considered yet. In this work, the Bi0.5Na0.5TiO3–Sr0.7Bi0.2□0.1TiO3– xNaNbO3 ( x = 0, 0.05, and 0.15) system is designed with a room-temperature ergodic relaxor character to explore energy storage evolution with temperature. The addition of NaNbO3 increases tetragonal ( P4bm) phase content and relaxor disorders and leads to a downshift of transition temperature, as verified by Rietveld refinement, dielectric analysis, and in situ Raman spectra. Superior temperature stability of recoverable energy storage density ( WRec, change rate: δ ≤ 14%) and efficiency ( η = 0.79–0.98) is found in x = 0.15 composition in a wide temperature range of 243–373 K, in contrast to a significant variation for x = 0 ( δ ≤ 85%, η = 0.08–0.88) and 0.05 ( δ ≤ 36%, η = 0.60–0.96) compositions. The dielectric relaxation speed is faster in x = 0.15, as characterized by on–off-electric field dielectric curves. This work demonstrates that the weak-dipolar-interaction system retards dipolar coalescence under cryogenic temperature and, thus, maintains high energy storage efficiency, which predicts their suitability in energy storage applications at an extreme condition.

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Effect of BaZrO3 amounts on the domain structure and electrical properties of lead-free piezoelectric KNN-based films

Cited by 4 publications

References 41 publications

Texture performance of lead-free Bi1/2Na1/2TiO3–BaZrO3 ceramics

Texture performance of lead-free Bi1/2Na1/2TiO3–BaZrO3 ceramics

The structure and electronic properties closely related to piezoelectricity of BaZrO3-modified K0.5Na0.5NbO3 lead-free ceramics: First-principle study

Excellent temperature stability of energy storage performance by weak dipolar interaction strategy

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