High d33 with high Qm
Embedding Cu-doped defect dipoles in KNN-based ceramics with phase boundary engineering simultaneously maintains high piezoelectric coefficient and significantly improves mechanical quality factor, breaking the trade-off between them.
Xinyue, Qiu · Wu, Chao · Daniel Q., Tan · Liang, Ruihong · Liu, Chen · Ma, Yinchang · Zhang, Xixiang · Shiyang, Wei · Zhang, Junwei · Tan, Zhi · Wang, Zhipeng · Lv, Xiang · Wu, Jiagang
Nature Communications 2025
d33 reaches 340 pC/N
Qm reaches 256
d33 decreases by only 1/5