Defect engineering has emerged as a promising approach to enhancing the carrier concentration of piezocatalytic materials, however, introducing defects can negatively affect piezoelectric performance by increasing charge screening and reducing domain wall mobility. Here, the authors show that using an external electric field to rearrange oxygen defect dipoles leads to a high carrier concentration while simultaneously improving both piezoelectric and piezocatalytic properties.
- Xiaoli Xu
- Ying Wang
- Da Chen
