Abstract
In our previous work, epitaxial Ba(Zr0.2Ti0.8)O3 thick films (~1–2 μm) showed an excellent energy storage performance with a large recyclable energy density (~58 J/cc) and a high energy efficiency (~92%), which was attributed to a nanoscale entangled heterophase polydomain structure. Here, we propose a detailed analysis of the structure–property relationship in these film materials, using an annealing process to illustrate the effect of nanodomain entanglement on the energy storage performance. It is revealed that an annealing-induced stress relaxation led to the segregation of the nanodomains (via detailed XRD analyses), and a degraded energy storage performance (via polarization-electric field analysis). These results confirm that a nanophase entanglement is an origin of the high-energy storage performance in the Ba(Zr0.2Ti0.8)O3 thick films.
Funder
National Natural Science Foundation of China
Shandong Academy of Sciences
Jinan City Science and Technology Bureau
Jiangsu Province NSFC
Air Force Office of Scientific Research
Subject
General Materials Science
Cited by
1 articles.
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