BCZT/LSMO/BCZT sandwich film: Toward high-temperature energy storage capacitors

IF 3 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materialia Pub Date : 2024-12-01 DOI:10.1016/j.mtla.2024.102309

Afaak Lakouader , Abdelilah Lahmar , Špela Kunej , Daoud Mezzane , Jamal Belhadi , El Hassan Choukri , Lahoucine Hajji , M'barek Amjoud , Zdravko Kutnjak , Igor A. Luk'yanchuk , Mimoun EL Marssi

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引用次数: 0

Abstract

Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃/La_0.8Sr_0.2MnO₃/Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT/LSMO/BCZT) sandwich thin film was deposited on Pt/TiO₂/SiO₂/Si substrate using sol-gel process. The dielectric properties displayed excellent thermal stability, with the temperature coefficient of capacitance TCC remaining within ± 10 % between -50 °C and 300 °C. The high-energy storage density W_rec of 11.8 J/cm³ observed in the sandwich thin film was nearly twice as high as that of the single BCZT thin film, with high efficiency η of 79 % and responsivity ξ_RT = W_rec /E_app of 0.016 J/kV.cm² under a weak electric field of 800 kV/cm. Furthermore, the stabilities of W_rec and η were observed over a wide temperature range. Interestingly, a high value of W_f = W_rec/(1-η) (> 60 J/cm³) from room temperature up to 300 °C was observed for BCZT/LSMO/BCZT thin film (three times higher than that of the single BCZT thin film), making the sandwich thin film promising candidate for high-temperature energy storage capacitors.

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来源期刊

Materialia MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.40

自引率

2.90%

发文量

345

审稿时长

36 days

期刊介绍： Materialia is a multidisciplinary journal of materials science and engineering that publishes original peer-reviewed research articles. Articles in Materialia advance the understanding of the relationship between processing, structure, property, and function of materials. Materialia publishes full-length research articles, review articles, and letters (short communications). In addition to receiving direct submissions, Materialia also accepts transfers from Acta Materialia, Inc. partner journals. Materialia offers authors the choice to publish on an open access model (with author fee), or on a subscription model (with no author fee).