Defect engineering of oxygen vacancies and domain configuration for high-performance CaBi 4 Ti 4 O 15 piezoelectric ceramics
Bismuth-layer-structured ferroelectrics (BLSFs) are promising candidates for high-temperature piezoelectric applications owing to their intrinsically high Curie temperatures. However, their practical implementation is hindered by the relatively low piezoelectric activity, which is largely associated with oxygen-vac...