A hybrid piezoelectric composite flexible film based on PVDF-HFP for boosting power generation

Humidity Sensors Based on Magnetic Ionic Liquids Blended in Poly(vinylidene fluoride-co-hexafluoropropylene)

“…From the FTIR-ATR spectra, it is possible to identify the polymer chain conformation in both the nonpolar trans–gauche–trans–gauche’ (TGTG’) conformation, ascribed as the PVDF-HFP α phase, and the presence of the polar crystalline β phase, characterized by a zig-zag (all trans) PVDF-HFP conformation. The α phase is identified by the absorption bands at 764, 796, and 976 cm –1 , and the polar β phase is identified by the bands at 840 and 878 cm –1 . The characteristic bands at 1069, 1179, and 1402 cm –1 correspond to CF 3 out-of-plane deformation, antisymmetric CF 2 stretch, and CH 2 wagging, respectively. − …”

“…The α phase is identified by the absorption bands at 764, 796, and 976 cm −1 , and the polar β phase is identified by the bands at 840 and 878 cm −1 . 41 The characteristic bands at 1069, 1179, and 1402 cm −1 correspond to CF 3 out-of-plane deformation, antisymmetric CF 2 stretch, and CH 2 wagging, respectively. 42−44 The presence of ILs in PVDF-HFP matrix is also identified in the FTIR-ATR spectra.…”

A review on polymers and their composites for flexible electronics

“…Under such circumstances, the traditional rigid electronic devices which are based on the semiconductor, metal, and inorganic materials faces the facts that they are difficult to satisfy people's new requirements, such as flexibility, extendable and wearable. [1][2][3][4][5][6] On the other hand, flexible electronics are booming in recent years because of their flexibility, wearability, and compatibility, and have shown great potential in energy collection, flexible display, flexible sensor electronics, electronic skin, and many other fields. In these flexible devices, polymer materials play a very important role due to their versatile and adjustable properties including flexibility.…”

“…In this case, the traditional rigid electronic devices based on semiconductors, metals, and inorganic materials cannot satisfy the new requirements, such as flexibility, extendable and wearable. [1][2][3][4][5][6] Alternatively, flexible electronics have been booming in recent years because of their…”

Self-poled and transparent polyvinylidene fluoride-co-hexafluoropropylene-based piezoelectric devices for printable and flexible electronics

“…36–38 Polyvinylidene fluoride- co -hexafluoropropylene (PVDF-HFP) has been extensively explored for the fabrication of PENGs owing to its high flexibility, transparency, ease of processing, and superior mechanical properties. 39,40…”