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Updated: Jul 14, 2026
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Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
Tailoring High Energy Storage Density by a Temperature-Induced Relaxor-to-Ferroelectric Phase Transition.
Qiang Lv1,2, Jieyu Chen1,2,3
1College of Science, Inner Mongolia University of Technology, Hohhot 010051, China.
Nanomaterials (Basel, Switzerland)
|July 13, 2026
Summary
Optimizing crystallization temperature in Na0.5Bi5.5Ti4AlO18 films enhances dielectric energy storage. This method controls crystal structure and improves energy density and efficiency by reducing grain size and suppressing conduction pathways.
Area of Science:
- Materials Science
- Solid State Physics
Background:
- Relaxor ferroelectrics exhibit unique dielectric properties.
- Controlling film microstructure is crucial for energy storage applications.
Purpose of the Study:
- To investigate the effect of crystallization temperature on Na0.5Bi5.5Ti4AlO18 films.
- To establish a structure-property relationship for optimizing dielectric energy storage.
Main Methods:
- Tuning crystallization temperature to control film structure.
- Characterizing crystal structure, relaxor behavior, and electrical properties.
- Evaluating energy storage performance, including energy density and efficiency.
Main Results:
- Crystallization temperature precisely controlled crystal structure and relaxor behavior.
- Reduced grain size at optimal temperature increased resistivity and breakdown strength.
- Achieved high recoverable energy density (49.6 J/cm3) and efficiency (73.5%) at 500 °C.
- Demonstrated excellent thermal and frequency stability.
Conclusions:
- Crystallization temperature is a key parameter for optimizing dielectric energy storage in Na0.5Bi5.5Ti4AlO18 films.
- Structure-property regulation via crystallization temperature enables enhanced performance.
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