Achieving enhanced energy storage performance and ultra-fast discharge time in tungsten-bronze ceramic
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 … Read more