Improved energy storage properties in Pb0.82La0.12(ZrxTi1-x)O3 antiferroelectric films with different Zr/Ti ratios

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources Pub Date : 2024-11-23 DOI:10.1016/j.jpowsour.2024.235843

X.W. Wang , M.Z. Hou , F. Yang , Y.X. Fu , X.F. Li , J.Y. Chen , K.X. Yu , D.H. Shao

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引用次数: 0

Abstract

Antiferroelectric (AFE) materials attract widespread attention due to their unique behavior under electric field. In this work, the Pb_0.82La_0.12(Zr_xTi_1-x)O₃ (PLZT) films with Zr/Ti ratios close to the AFE region are deposited on the LaNiO₃/SiO₂/Si substrate through chemical deposition method. The dielectric, leakage, and ferroelectric performance of PLZT films are thoroughly examined. It can be concluded that the Zr content in PLZT films can effectively regulate their dielectric properties. At the same time, the increase of Zr/Ti ratio makes the double hysteresis loop of PLZT more obvious, leading to greater stability of the AFE phase, providing a significant advantage in energy storage. Notably, the PLZT film with a Zr/Ti ratio of 95/5 exhibits the highest recoverable energy storage density (W_rec) of 30.8 J/cm³ and energy storage efficiency (η) of 71.5 %. These results reveal that the Zr/Ti ratio in PLZT antiferroelectric films plays a critical role in enhancing their energy storage performance.

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不同 Zr/Ti 比的 Pb0.82La0.12(ZrxTi1-x)O3 反铁电薄膜的改进储能特性

反铁电（AFE）材料因其在电场作用下的独特行为而受到广泛关注。在这项研究中，通过化学沉积法在 LaNiO3/SiO2/Si 衬底上沉积了 Zr/Ti 比率接近 AFE 区域的 Pb0.82La0.12(ZrxTi1-x)O3 (PLZT) 薄膜。对 PLZT 薄膜的介电、漏电和铁电性能进行了深入研究。结果表明，PLZT 薄膜中 Zr 的含量能有效调节其介电性能。同时，Zr/Ti 比的增加使 PLZT 的双磁滞回线更加明显，从而使 AFE 相更加稳定，在储能方面具有显著优势。值得注意的是，Zr/Ti 比为 95/5 的 PLZT 薄膜的可恢复储能密度（Wrec）最高，达到 30.8 J/cm3，储能效率（η）为 71.5%。这些结果表明，PLZT 反铁电薄膜中的 Zr/Ti 比率对提高其储能性能起着至关重要的作用。

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来源期刊

Journal of Power Sources 工程技术-电化学

CiteScore

16.40

自引率

6.50%

发文量

1249

审稿时长

36 days

期刊介绍： The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems