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Updated: Sep 2, 2025
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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
Published on: April 8, 2018
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Ferroelectric/paraelectric superlattices for energy storage
Hugo Aramberri1,2, Natalya S Fedorova1,2, Jorge Íñiguez1,2,3
1Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 5 Avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
Science Advances
|August 3, 2022
Summary
Engineered superlattices mimic antiferroelectrics for high energy density storage. These artificial materials show promising performance for pulsed-power applications, rivaling state-of-the-art capacitors.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Solid State Chemistry
Background:
- Antiferroelectric materials offer high energy density storage crucial for pulsed-power technologies.
- The limited availability of known antiferroelectric materials hinders their widespread application.
- Artificial antiferroelectrics present a viable alternative for enhanced energy storage capabilities.
Purpose of the Study:
- To engineer ferroelectric/paraelectric superlattices as artificial antiferroelectrics.
- To optimize the energy storage performance (density and release efficiency) of PbTiO3/SrTiO3 superlattices at room temperature.
- To investigate the impact of design variables like layer thicknesses, epitaxial conditions, and dielectric layer stiffness.
Main Methods:
- High-throughput second-principles calculations were employed for material design and optimization.
- PbTiO3/SrTiO3 superlattices were computationally engineered.
- Systematic variation of design parameters to identify optimal configurations.
Main Results:
- Engineered PbTiO3/SrTiO3 superlattices demonstrate energy storage performance competitive with state-of-the-art antiferroelectric capacitors.
- Optimal design parameters for maximizing energy density and release efficiency were identified.
- Mechanisms underlying the superior properties of the engineered superlattices were elucidated.
Conclusions:
- Ferroelectric/paraelectric superlattices can be effectively designed as artificial antiferroelectrics.
- Optimized superlattices offer a promising pathway for advanced energy storage solutions.
- This approach provides a route to overcome limitations associated with naturally occurring antiferroelectrics.
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