CNTs-added PMNT/PDMS flexible piezoelectric nanocomposite for energy harvesting application

Piezoelectric nanogenerators for personalized healthcare

“…Piezoelectric fillers and non-piezoelectric polymers, mainly include mixed piezoelectric nanomaterials such as BaTiO 3 , PZT or potassium sodium niobate (KNN) with non-piezoelectric polymers such as PDMS, rubber or epoxy resin to reduce the brittleness of ceramic materials. [360][361][362][363][364] In contrast, non-piezoelectric fillers and piezoelectric polymers mainly contain conductive materials (rGO, Ag NPs, carbon nanotubes, graphene), [365][366][367][368][369][370][371][372] metal oxides (MgO, TiO 2 , Fe 3 O 4 , CoFe 2 O 4 ) [373][374][375][376][377][378] or other materials (MXene, 379 sugar, 380 MAPbI 3 , 349 polyaniline 381 ) within piezoelectric polymers like PVDF or P(VDF-TrFE), enhancing the dipole polarization of the polymer to improve the electrical output performance of the composites. When both the fillers and the polymers are piezoelectric, the resulting composites not only improve mechanical flexibility but also enhance electrical output performance via the piezoelectric synergy.…”

Flexible Piezoelectric Devices and Their Wearable Applications

“…(BTO [24][25] 、PZT [26] 、铌酸钾钠(KNN) [27] 等)填充到 PDMS [28] 等柔弹性基体中以降低无机材料的脆性。 其次，非压电填料和压电聚合物的组合主要是将导 电材料(Ag 纳米颗粒 [29] 、CNT [28] 、石墨烯 [30][31] 、 MWCNTs [32] 、GO 和 rGO [33] 、MXene [34][35][36] 等)、金 属氧化物(MgO [37] 、TiO2 [38][39] 、Fe3O4 [40][41] 等)或其他 材料(MoS2 [42] 等)混合在 PVDF 及其共聚物中，增强 聚合物的偶极极化和导电性，从而提高复合材料的 电输出性能。压电填料和压电聚合物组合，主要是 将无机压电纳米材料(BTO [43] 、PZT [3,44] 、ZnO [45] 、 钛酸铋钠(BNT) [46] 或 KNN [47] 等)添加到 PVDF 及其 共聚物中，所得到的复合材料不仅可以提高机械柔 韧性，还可以通过压电协同作用提高电输出性能。 最后，压电填料、导电材料和压电聚合物的组合不 仅提高了机械柔韧性，还能降低器件内阻，更进一 步提高压电输出。Hu 等 [48]…”

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

“…The performance of flexible functional materials greatly determines the application of flexible devices [1,2]. At present, PDMS with high transparency, stretchability and permittivity has gained the attention of many researchers [3,4]. However, PDMS films have poor dielectric properties and no magnetic properties at high frequencies, which severely limits the high frequency applications.…”