fig3
From: Challenges and progress of chemical modification in piezoelectric composites and their applications
![Challenges and progress of chemical modification in piezoelectric composites and their applications](https://image.oaes.cc/070d0fcb-dcef-471e-9790-390f913bc388/5605.fig.3.jpg)
Figure 3. Chemically modified piezoelectric materials. (A) Cationic-substitution-modified ceramics; (B) the direct terpolymerization scheme of VDF, TrFE and CTFE[41]. Copyright 2022, American Chemical Society; (C) reaction scheme of P(VDF-TrFE-CFE) treated with triethylamine[46]. Copyright 2022, American Association for the Advancement of Science.