Morphotropic Phase Boundary in Irradiated Ferroelectric Polymers
Abstract
Abstract Morphotropic phase boundary (MPB) enables a large piezoelectric effect in ferroelectric polymers. However, till now MPB has only been observed in a few polymers, which is induced by compositional tuning of the polymer composition. Here a distinct approach to design MPB in ferroelectric polymers is reported via ion irradiation. Without changing composition as required by the conventional compositional approach, the formation of helix/ trans MPB in ferroelectric polymers is achieved upon increasing the irradiation dose, near which a substantially enhanced piezoelectric coefficient d 33 of ‐69.8 pC N −1 is observed. The effectiveness of this method is demonstrated by using different sources of irradiation and polymer compositions, which offers a general and scalable postprocessing tool to effectively improve the piezoelectric response of ferroelectric polymers.
Article Details
Authors (6)
Yuquan Liu
State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology 1 , Wuhan, Hubei 430074,
Hui Tong
Chenyi Li
State Key Laboratory of High Pressure and Superhard Materials, College of Physics
Wei Qi
Huamin Zhou
Yang Liu