Regulation ideas/results for the energy storage performance of Sr4.5-xBaxSm0.5Zr0.5Nb9.5O30 (x = 2.5, 3, 3.5, 4, 4.5) ceramics and the macroscopic manifestations of their energy storage performance. (IMAGE)

Tsinghua University Press

Regulation ideas/results for the energy storage performance of Sr4.5-xBaxSm0.5Zr0.5Nb9.5O30 (x = 2.5, 3, 3.5, 4, 4.5) ceramics and the macroscopic manifestations of their energy storage performance.

Caption

The tetragonal tungsten bronze structure Sr4.5-xBaxSm0.5Zr0.5Nb9.5O30 (x = 2.5, 3, 3.5, 4, 4.5) ceramics were prepared by the strategy of co-doping Ba2+, Sr2+, Sm3+ in the A-site and substituting Nb5+ with Zr4+ in the B-site to break the long-range ferroelectric ordering. The existence of polar nanoregions (PNRs) was confirmed by high-resolution transmission electron microscopy. It was verified that the small-sized PNRs intrinsically induce the relaxation ferroelectric behavior of Sr4.5-xBaxSm0.5Zr0.5Nb9.5O30 ceramics, thereby significantly improving the energy storage performance.

Credit

Journal of Advanced Ceramics, Tsinghua University Press

Usage Restrictions

Credit must be given to the creator.

License

CC BY

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.