Enhanced energy-storage performance in AgNbO3-based lead-free antiferroelectrics via relaxor ferroelectric subsitution

IF 2.1 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2025-01-16 DOI:10.1016/j.ssc.2025.115843

N. Zhang , P.P. Jia , M.M. Zhu , L.Y. Kong , J. Li , Q.Y. Guo , Y.H. Zhang , Z.Y. Liu , T. Li , Y.Y. Guo , S. Zhou , G.L. Song

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引用次数: 0

Abstract

Lead-free antiferroelectric AgNbO₃ (AN) ceramics have attracted significant attention due to their potential in energy storage applications. However, the presence of the ferrielectric phase and field-induced phase transitions result in substantial remnant polarization (P_r) and hysteresis loss, which substantially diminishes their energy storage properties. In this study, relaxor ferroelectric (RFE) materials, specifically Bi(Mg_2/3Nb_1/3)O₃ (BMN) and (Bi_0.5Na_0.5)TiO₃ (BNT), were incorporated into AN ceramics to enhance their antiferroelectric properties and introduce relaxation behavior. The reduced tolerance factor and enhanced disordered local structure effectively stabilized the antiferroelectricity, thereby mitigating hysteresis loss and P_r. The AN-0.5 mol.% RFE ceramics demonstrated significantly enhanced recoverable energy density (W_rec ≈ 3.95−4.16 J/cm³) and efficiency (η ≈ 51.82−52.85 %) in comparison to pristine AN, even under relatively low electric fields (E ≤ 204 kV/cm). These findings highlight that RFE-modified AN-based ceramics are highly efficient lead-free antiferroelectrics for low-electric-field high-energy storage applications.

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.