A clear trend of higher P max with higher T cryst is noticeable, coming presumably from a higher degree of crystallinity as expected at higher temperatures, with 39 μC cm −2 for 700/30 and from the more columnar grain structure, which is known to show higher polarization values.
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Ultrahigh energy storage in process-engineered NaNbO₃-based thin films with superior thermal and cyclic stability.
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