The ferroelectric, pyroelectric, and dielectric properties of 0–3 nanocomposite systems of ferroelectric (Bi_0.5Na_0.5)TiO₃-(Bi_0.5K_0.5)TiO₃-BaTiO₃ ceramics with a vinylidene fluoride/trifluoethylene copolymer were investigated. It was observed that the interface effect between the polymer matrix and nanofiller improves the polarization response in nanocomposite. As a result, significant enhancements in remnant polarization of 130 mC/m² and pyroelectric sensitivity of 90 μC/m²K are achieved compared to 85 mC/m² and 26 μC/m²K for pure polymer matrix. Full ferroelectric polarization reversal in the nanocomposite system was supported by a displacement (D) – electric field (E) hysteresis loop and evidence of pyroelectric activity. This finding suggests that the local field plays an important key in facilitating the poling procedure. Therefore, the functional electrical properties of the nanocomposites can be significantly enhanced by controlling the permittivity and conductivity of the inorganic ferroelectric ceramic nanofiller to match the required parameters. Microscopic features of the ferroelectric polarization are also discussed in terms of a two-step switching process. The approach developed her open the way of rational design and assembly of lead free nanocomposite as flexible, light and high performance smart materials, satisfying various requirements for emerging applications.

研究了具有偏二氟乙烯/三氟乙烯共聚物的铁电（Bi _0.5 Na _0.5）TiO _3-（Bi _0.5 K _0.5）TiO ₃ -BaTiO ₃陶瓷的0-3纳米复合体系的铁电，热电和介电性能。观察到，聚合物基质和纳米填料之间的界面效应改善了纳米复合材料中的极化响应。其结果是，在130的MC剩余极化显著增强/米²和90μC/米的热电灵敏度² K的取得了相比于85 MC /米²和26μC/米²K为纯聚合物基体。位移（D）-电场（E磁滞回线和热电活动的证据。这一发现表明，本地田地在促进极化过程中起着重要的作用。因此，通过控制无机铁电陶瓷纳米填料的介电常数和电导率以匹配所需参数，可以显着增强纳米复合材料的功能电性能。还根据两步切换过程讨论了铁电极化的微观特征。该方法为合理设计和组装无铅纳米复合材料提供了开放的途径，该复合材料是柔性，轻质和高性能的智能材料，可以满足新兴应用的各种要求。