Dielectric capacitors based on relaxor ferroelectrics are a promising energy storage technology, and an efficient design of relaxors is useful to enhance the storage performance. Here the authors quantitatively evaluate the local compositional inhomogeneity of relaxors via a configurational entropy index and realize overall high performance in a Bi4Ti3O12-based device.
- Bingbing Yang
- Qinghua Zhang
- Yuan-Hua Lin