BCZT/LSMO/BCZT multilayer films for high temperature energy storage capacitors

Afaak Lakouader; Abdelilah Lahmar; Spela Kunej; Daoud Mezzane; Jamal Belhadi; El Hassan Choukri; Lahoucine Hajji; Mbarek Amjoud; Zdravko Kutnjak; Igor A. Lukyanchuk; Mimoun El Marssi

BCZT/LSMO/BCZT multilayer films for high temperature energy storage capacitors

Materials Science 2025-03-13 v1 Applied Physics

Authors: Afaak Lakouader , Abdelilah Lahmar , Spela Kunej , Daoud Mezzane , Jamal Belhadi , El Hassan Choukri , Lahoucine Hajji , Mbarek Amjoud , Zdravko Kutnjak , Igor A. Lukyanchuk , Mimoun El Marssi

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Abstract

Ba0.85Ca0.15Zr0.1Ti0.9O3/La0.8Sr0.2MnO3/Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT/LSMO/BCZT) sandwich films were elaborated using the sol-gel spin coating 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, Wrec, of 11.8 J/cm3 observed in this sandwich films, is nearly twice as high as that of the BCZT films, with an efficiency, n, of 77% under a weak electric field of 800 kV/cm. Furthermore, the stability of Wrec and n was observed along the studied temperature interval making them promising candidates for high-temperature energy storage capacitors.

Keywords

multilayer films energy storage capacitors dielectric properties thermal stability sol-gel spin coating

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@article{arxiv.2503.08941,
  title  = {BCZT/LSMO/BCZT multilayer films for high temperature energy storage capacitors},
  author = {Afaak Lakouader and Abdelilah Lahmar and Spela Kunej and Daoud Mezzane and Jamal Belhadi and El Hassan Choukri and Lahoucine Hajji and Mbarek Amjoud and Zdravko Kutnjak and Igor A. Lukyanchuk and Mimoun El Marssi},
  journal= {arXiv preprint arXiv:2503.08941},
  year   = {2025}
}

BCZT/LSMO/BCZT multilayer films for high temperature energy storage capacitors

Abstract

Keywords

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